Home / 4,089.92-6,134.32-1,781.12

Finding the Fourth Proportional to 4,089.92, 6,134.32 and 1,781.12

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Solution

The fourth proportional to 4,089.92, 6,134.32 and 1,781.12 is: 2,671.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,089.92 : 6,134.32 = 1,781.12 : x
  2. Step 2: Convert to fraction form
    4,089.92/6,134.32 = 1,781.12/x
  3. Step 3: Cross multiply
    4,089.92x = 6,134.32 × 1,781.12
  4. Step 4: Simplify right side
    4,089.92x = 10,925,960.04
  5. Step 5: Solve for x
    x = 10,925,960.04/4,089.92
  6. Step 6: Final answer
    x = 2,671.44

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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.