Home / 5,480.10-7,561.08-3,122.19

Finding the Fourth Proportional to 5,480.10, 7,561.08 and 3,122.19

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Solution

The fourth proportional to 5,480.10, 7,561.08 and 3,122.19 is: 4,307.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,480.10 : 7,561.08 = 3,122.19 : x
  2. Step 2: Convert to fraction form
    5,480.10/7,561.08 = 3,122.19/x
  3. Step 3: Cross multiply
    5,480.10x = 7,561.08 × 3,122.19
  4. Step 4: Simplify right side
    5,480.10x = 23,607,128.37
  5. Step 5: Solve for x
    x = 23,607,128.37/5,480.10
  6. Step 6: Final answer
    x = 4,307.79

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Half scale
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Double scale
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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.