Home / 5,440.30-8,160.46-1,742.78

Finding the Fourth Proportional to 5,440.30, 8,160.46 and 1,742.78

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Solution

The fourth proportional to 5,440.30, 8,160.46 and 1,742.78 is: 2,614.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.30 : 8,160.46 = 1,742.78 : x
  2. Step 2: Convert to fraction form
    5,440.30/8,160.46 = 1,742.78/x
  3. Step 3: Cross multiply
    5,440.30x = 8,160.46 × 1,742.78
  4. Step 4: Simplify right side
    5,440.30x = 14,221,902.52
  5. Step 5: Solve for x
    x = 14,221,902.52/5,440.30
  6. Step 6: Final answer
    x = 2,614.18

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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.