Home / 5,387.62-7,435.12-2,997.70

Finding the Fourth Proportional to 5,387.62, 7,435.12 and 2,997.70

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Solution

The fourth proportional to 5,387.62, 7,435.12 and 2,997.70 is: 4,136.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.62 : 7,435.12 = 2,997.70 : x
  2. Step 2: Convert to fraction form
    5,387.62/7,435.12 = 2,997.70/x
  3. Step 3: Cross multiply
    5,387.62x = 7,435.12 × 2,997.70
  4. Step 4: Simplify right side
    5,387.62x = 22,288,259.22
  5. Step 5: Solve for x
    x = 22,288,259.22/5,387.62
  6. Step 6: Final answer
    x = 4,136.94

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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.