Home / 3,307.36-4,565.59-1,980.81

Finding the Fourth Proportional to 3,307.36, 4,565.59 and 1,980.81

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Solution

The fourth proportional to 3,307.36, 4,565.59 and 1,980.81 is: 2,734.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307.36 : 4,565.59 = 1,980.81 : x
  2. Step 2: Convert to fraction form
    3,307.36/4,565.59 = 1,980.81/x
  3. Step 3: Cross multiply
    3,307.36x = 4,565.59 × 1,980.81
  4. Step 4: Simplify right side
    3,307.36x = 9,043,566.33
  5. Step 5: Solve for x
    x = 9,043,566.33/3,307.36
  6. Step 6: Final answer
    x = 2,734.38

Related Problems

Find fourth proportional to 1,653.68, 2,282.80 and 990.41
Half scale
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Double scale
Find fourth proportional to 3,308.36, 4,566.97 and 1,981.81
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.