Home / 5,377.34-7,420.38-2,987.13

Finding the Fourth Proportional to 5,377.34, 7,420.38 and 2,987.13

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Solution

The fourth proportional to 5,377.34, 7,420.38 and 2,987.13 is: 4,122.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,377.34 : 7,420.38 = 2,987.13 : x
  2. Step 2: Convert to fraction form
    5,377.34/7,420.38 = 2,987.13/x
  3. Step 3: Cross multiply
    5,377.34x = 7,420.38 × 2,987.13
  4. Step 4: Simplify right side
    5,377.34x = 22,165,614.59
  5. Step 5: Solve for x
    x = 22,165,614.59/5,377.34
  6. Step 6: Final answer
    x = 4,122.04

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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.