Home / 1,508.55-2,261.61-1,387.05

Finding the Fourth Proportional to 1,508.55, 2,261.61 and 1,387.05

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Solution

The fourth proportional to 1,508.55, 2,261.61 and 1,387.05 is: 2,079.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,508.55 : 2,261.61 = 1,387.05 : x
  2. Step 2: Convert to fraction form
    1,508.55/2,261.61 = 1,387.05/x
  3. Step 3: Cross multiply
    1,508.55x = 2,261.61 × 1,387.05
  4. Step 4: Simplify right side
    1,508.55x = 3,136,966.15
  5. Step 5: Solve for x
    x = 3,136,966.15/1,508.55
  6. Step 6: Final answer
    x = 2,079.46

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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.