Home / 3,591.60-5,388.24-1,126.40

Finding the Fourth Proportional to 3,591.60, 5,388.24 and 1,126.40

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Solution

The fourth proportional to 3,591.60, 5,388.24 and 1,126.40 is: 1,689.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,591.60 : 5,388.24 = 1,126.40 : x
  2. Step 2: Convert to fraction form
    3,591.60/5,388.24 = 1,126.40/x
  3. Step 3: Cross multiply
    3,591.60x = 5,388.24 × 1,126.40
  4. Step 4: Simplify right side
    3,591.60x = 6,069,313.54
  5. Step 5: Solve for x
    x = 6,069,313.54/3,591.60
  6. Step 6: Final answer
    x = 1,689.86

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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.