Home / 5,221.13-7,161.05-4,938.71

Finding the Fourth Proportional to 5,221.13, 7,161.05 and 4,938.71

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Solution

The fourth proportional to 5,221.13, 7,161.05 and 4,938.71 is: 6,773.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,221.13 : 7,161.05 = 4,938.71 : x
  2. Step 2: Convert to fraction form
    5,221.13/7,161.05 = 4,938.71/x
  3. Step 3: Cross multiply
    5,221.13x = 7,161.05 × 4,938.71
  4. Step 4: Simplify right side
    5,221.13x = 35,366,349.25
  5. Step 5: Solve for x
    x = 35,366,349.25/5,221.13
  6. Step 6: Final answer
    x = 6,773.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.