Home / 1,591.62-2,387.43-1,298.76

Finding the Fourth Proportional to 1,591.62, 2,387.43 and 1,298.76

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Solution

The fourth proportional to 1,591.62, 2,387.43 and 1,298.76 is: 1,948.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,591.62 : 2,387.43 = 1,298.76 : x
  2. Step 2: Convert to fraction form
    1,591.62/2,387.43 = 1,298.76/x
  3. Step 3: Cross multiply
    1,591.62x = 2,387.43 × 1,298.76
  4. Step 4: Simplify right side
    1,591.62x = 3,100,698.59
  5. Step 5: Solve for x
    x = 3,100,698.59/1,591.62
  6. Step 6: Final answer
    x = 1,948.14

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Double scale
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Similar ratio
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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.