Home / 4,551.31-6,278.19-2,872.12

Finding the Fourth Proportional to 4,551.31, 6,278.19 and 2,872.12

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Solution

The fourth proportional to 4,551.31, 6,278.19 and 2,872.12 is: 3,961.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,551.31 : 6,278.19 = 2,872.12 : x
  2. Step 2: Convert to fraction form
    4,551.31/6,278.19 = 2,872.12/x
  3. Step 3: Cross multiply
    4,551.31x = 6,278.19 × 2,872.12
  4. Step 4: Simplify right side
    4,551.31x = 18,031,715.06
  5. Step 5: Solve for x
    x = 18,031,715.06/4,551.31
  6. Step 6: Final answer
    x = 3,961.87

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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.