Home / 4,393.12-6,589.68-1,315.04

Finding the Fourth Proportional to 4,393.12, 6,589.68 and 1,315.04

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Solution

The fourth proportional to 4,393.12, 6,589.68 and 1,315.04 is: 1,972.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,393.12 : 6,589.68 = 1,315.04 : x
  2. Step 2: Convert to fraction form
    4,393.12/6,589.68 = 1,315.04/x
  3. Step 3: Cross multiply
    4,393.12x = 6,589.68 × 1,315.04
  4. Step 4: Simplify right side
    4,393.12x = 8,665,692.79
  5. Step 5: Solve for x
    x = 8,665,692.79/4,393.12
  6. Step 6: Final answer
    x = 1,972.56

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Double scale
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Similar ratio
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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.