Home / 5,551.80-8,328.78-1,656.12

Finding the Fourth Proportional to 5,551.80, 8,328.78 and 1,656.12

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Solution

The fourth proportional to 5,551.80, 8,328.78 and 1,656.12 is: 2,484.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,551.80 : 8,328.78 = 1,656.12 : x
  2. Step 2: Convert to fraction form
    5,551.80/8,328.78 = 1,656.12/x
  3. Step 3: Cross multiply
    5,551.80x = 8,328.78 × 1,656.12
  4. Step 4: Simplify right side
    5,551.80x = 13,793,459.13
  5. Step 5: Solve for x
    x = 13,793,459.13/5,551.80
  6. Step 6: Final answer
    x = 2,484.50

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Half scale
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Double scale
Find fourth proportional to 5,552.80, 8,330.28 and 1,657.12
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.