Home / 5,436.59-8,155.28-1,687.88

Finding the Fourth Proportional to 5,436.59, 8,155.28 and 1,687.88

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Solution

The fourth proportional to 5,436.59, 8,155.28 and 1,687.88 is: 2,531.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,436.59 : 8,155.28 = 1,687.88 : x
  2. Step 2: Convert to fraction form
    5,436.59/8,155.28 = 1,687.88/x
  3. Step 3: Cross multiply
    5,436.59x = 8,155.28 × 1,687.88
  4. Step 4: Simplify right side
    5,436.59x = 13,765,128.03
  5. Step 5: Solve for x
    x = 13,765,128.03/5,436.59
  6. Step 6: Final answer
    x = 2,531.94

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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.