Home / 5,026.42-6,931.92-3,138.17

Finding the Fourth Proportional to 5,026.42, 6,931.92 and 3,138.17

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Solution

The fourth proportional to 5,026.42, 6,931.92 and 3,138.17 is: 4,327.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,026.42 : 6,931.92 = 3,138.17 : x
  2. Step 2: Convert to fraction form
    5,026.42/6,931.92 = 3,138.17/x
  3. Step 3: Cross multiply
    5,026.42x = 6,931.92 × 3,138.17
  4. Step 4: Simplify right side
    5,026.42x = 21,753,557.61
  5. Step 5: Solve for x
    x = 21,753,557.61/5,026.42
  6. Step 6: Final answer
    x = 4,327.84

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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.