Home / 3,439.06-5,156.12-2,781.74

Finding the Fourth Proportional to 3,439.06, 5,156.12 and 2,781.74

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Solution

The fourth proportional to 3,439.06, 5,156.12 and 2,781.74 is: 4,170.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,439.06 : 5,156.12 = 2,781.74 : x
  2. Step 2: Convert to fraction form
    3,439.06/5,156.12 = 2,781.74/x
  3. Step 3: Cross multiply
    3,439.06x = 5,156.12 × 2,781.74
  4. Step 4: Simplify right side
    3,439.06x = 14,343,005.09
  5. Step 5: Solve for x
    x = 14,343,005.09/3,439.06
  6. Step 6: Final answer
    x = 4,170.62

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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.