Home / 3,931.25-5,424.91-2,252.32

Finding the Fourth Proportional to 3,931.25, 5,424.91 and 2,252.32

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Solution

The fourth proportional to 3,931.25, 5,424.91 and 2,252.32 is: 3,108.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,931.25 : 5,424.91 = 2,252.32 : x
  2. Step 2: Convert to fraction form
    3,931.25/5,424.91 = 2,252.32/x
  3. Step 3: Cross multiply
    3,931.25x = 5,424.91 × 2,252.32
  4. Step 4: Simplify right side
    3,931.25x = 12,218,614.10
  5. Step 5: Solve for x
    x = 12,218,614.10/3,931.25
  6. Step 6: Final answer
    x = 3,108.08

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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.