Home / 3,591.71-5,387.57-1,126.76

Finding the Fourth Proportional to 3,591.71, 5,387.57 and 1,126.76

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Solution

The fourth proportional to 3,591.71, 5,387.57 and 1,126.76 is: 1,690.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.71 : 5,387.57 = 1,126.76 : x
  2. Step 2: Convert to fraction form
    3,591.71/5,387.57 = 1,126.76/x
  3. Step 3: Cross multiply
    3,591.71x = 5,387.57 × 1,126.76
  4. Step 4: Simplify right side
    3,591.71x = 6,070,465.80
  5. Step 5: Solve for x
    x = 6,070,465.80/3,591.71
  6. Step 6: Final answer
    x = 1,690.13

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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.