Home / 1,591.32-2,387.15-437.07

Finding the Fourth Proportional to 1,591.32, 2,387.15 and 437.07

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Solution

The fourth proportional to 1,591.32, 2,387.15 and 437.07 is: 655.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.32 : 2,387.15 = 437.07 : x
  2. Step 2: Convert to fraction form
    1,591.32/2,387.15 = 437.07/x
  3. Step 3: Cross multiply
    1,591.32x = 2,387.15 × 437.07
  4. Step 4: Simplify right side
    1,591.32x = 1,043,349.47
  5. Step 5: Solve for x
    x = 1,043,349.47/1,591.32
  6. Step 6: Final answer
    x = 655.65

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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.