Home / 3,931.46-5,424.80-2,252.55

Finding the Fourth Proportional to 3,931.46, 5,424.80 and 2,252.55

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Solution

The fourth proportional to 3,931.46, 5,424.80 and 2,252.55 is: 3,108.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.46 : 5,424.80 = 2,252.55 : x
  2. Step 2: Convert to fraction form
    3,931.46/5,424.80 = 2,252.55/x
  3. Step 3: Cross multiply
    3,931.46x = 5,424.80 × 2,252.55
  4. Step 4: Simplify right side
    3,931.46x = 12,219,614.30
  5. Step 5: Solve for x
    x = 12,219,614.30/3,931.46
  6. Step 6: Final answer
    x = 3,108.16

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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.