Home / 5,713.20-7,872.12-4,118.04

Finding the Fourth Proportional to 5,713.20, 7,872.12 and 4,118.04

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Solution

The fourth proportional to 5,713.20, 7,872.12 and 4,118.04 is: 5,674.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,713.20 : 7,872.12 = 4,118.04 : x
  2. Step 2: Convert to fraction form
    5,713.20/7,872.12 = 4,118.04/x
  3. Step 3: Cross multiply
    5,713.20x = 7,872.12 × 4,118.04
  4. Step 4: Simplify right side
    5,713.20x = 32,417,705.04
  5. Step 5: Solve for x
    x = 32,417,705.04/5,713.20
  6. Step 6: Final answer
    x = 5,674.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.