Home / 3,591.36-5,387-1,251.40

Finding the Fourth Proportional to 3,591.36, 5,387 and 1,251.40

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Solution

The fourth proportional to 3,591.36, 5,387 and 1,251.40 is: 1,877.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.36 : 5,387 = 1,251.40 : x
  2. Step 2: Convert to fraction form
    3,591.36/5,387 = 1,251.40/x
  3. Step 3: Cross multiply
    3,591.36x = 5,387 × 1,251.40
  4. Step 4: Simplify right side
    3,591.36x = 6,741,291.80
  5. Step 5: Solve for x
    x = 6,741,291.80/3,591.36
  6. Step 6: Final answer
    x = 1,877.09

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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.