Home / 3,724.32-5,136.16-3,226.72

Finding the Fourth Proportional to 3,724.32, 5,136.16 and 3,226.72

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Solution

The fourth proportional to 3,724.32, 5,136.16 and 3,226.72 is: 4,449.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.32 : 5,136.16 = 3,226.72 : x
  2. Step 2: Convert to fraction form
    3,724.32/5,136.16 = 3,226.72/x
  3. Step 3: Cross multiply
    3,724.32x = 5,136.16 × 3,226.72
  4. Step 4: Simplify right side
    3,724.32x = 16,572,950.20
  5. Step 5: Solve for x
    x = 16,572,950.20/3,724.32
  6. Step 6: Final answer
    x = 4,449.93

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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.