Home / 5,360.10-7,397.02-3,121.92

Finding the Fourth Proportional to 5,360.10, 7,397.02 and 3,121.92

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Solution

The fourth proportional to 5,360.10, 7,397.02 and 3,121.92 is: 4,308.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,360.10 : 7,397.02 = 3,121.92 : x
  2. Step 2: Convert to fraction form
    5,360.10/7,397.02 = 3,121.92/x
  3. Step 3: Cross multiply
    5,360.10x = 7,397.02 × 3,121.92
  4. Step 4: Simplify right side
    5,360.10x = 23,092,904.68
  5. Step 5: Solve for x
    x = 23,092,904.68/5,360.10
  6. Step 6: Final answer
    x = 4,308.30

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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.