Home / 5,419.32-8,129.46-1,523.76

Finding the Fourth Proportional to 5,419.32, 8,129.46 and 1,523.76

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Solution

The fourth proportional to 5,419.32, 8,129.46 and 1,523.76 is: 2,285.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,419.32 : 8,129.46 = 1,523.76 : x
  2. Step 2: Convert to fraction form
    5,419.32/8,129.46 = 1,523.76/x
  3. Step 3: Cross multiply
    5,419.32x = 8,129.46 × 1,523.76
  4. Step 4: Simplify right side
    5,419.32x = 12,387,345.97
  5. Step 5: Solve for x
    x = 12,387,345.97/5,419.32
  6. Step 6: Final answer
    x = 2,285.77

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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.