Home / 5,591.43-8,387.45-1,431.48

Finding the Fourth Proportional to 5,591.43, 8,387.45 and 1,431.48

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Solution

The fourth proportional to 5,591.43, 8,387.45 and 1,431.48 is: 2,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,591.43 : 8,387.45 = 1,431.48 : x
  2. Step 2: Convert to fraction form
    5,591.43/8,387.45 = 1,431.48/x
  3. Step 3: Cross multiply
    5,591.43x = 8,387.45 × 1,431.48
  4. Step 4: Simplify right side
    5,591.43x = 12,006,459.77
  5. Step 5: Solve for x
    x = 12,006,459.77/5,591.43
  6. Step 6: Final answer
    x = 2,147.30

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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.