Home / 5,229.13-7,216.39-2,871.45

Finding the Fourth Proportional to 5,229.13, 7,216.39 and 2,871.45

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Solution

The fourth proportional to 5,229.13, 7,216.39 and 2,871.45 is: 3,962.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,229.13 : 7,216.39 = 2,871.45 : x
  2. Step 2: Convert to fraction form
    5,229.13/7,216.39 = 2,871.45/x
  3. Step 3: Cross multiply
    5,229.13x = 7,216.39 × 2,871.45
  4. Step 4: Simplify right side
    5,229.13x = 20,721,488.71
  5. Step 5: Solve for x
    x = 20,721,488.71/5,229.13
  6. Step 6: Final answer
    x = 3,962.70

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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.