Home / 5,387.28-8,080.92-1,491.60

Finding the Fourth Proportional to 5,387.28, 8,080.92 and 1,491.60

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Solution

The fourth proportional to 5,387.28, 8,080.92 and 1,491.60 is: 2,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.28 : 8,080.92 = 1,491.60 : x
  2. Step 2: Convert to fraction form
    5,387.28/8,080.92 = 1,491.60/x
  3. Step 3: Cross multiply
    5,387.28x = 8,080.92 × 1,491.60
  4. Step 4: Simplify right side
    5,387.28x = 12,053,500.27
  5. Step 5: Solve for x
    x = 12,053,500.27/5,387.28
  6. Step 6: Final answer
    x = 2,237.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.