Home / 5,158.01-7,732.32-1,868.78

Finding the Fourth Proportional to 5,158.01, 7,732.32 and 1,868.78

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Solution

The fourth proportional to 5,158.01, 7,732.32 and 1,868.78 is: 2,801.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,158.01 : 7,732.32 = 1,868.78 : x
  2. Step 2: Convert to fraction form
    5,158.01/7,732.32 = 1,868.78/x
  3. Step 3: Cross multiply
    5,158.01x = 7,732.32 × 1,868.78
  4. Step 4: Simplify right side
    5,158.01x = 14,449,966.31
  5. Step 5: Solve for x
    x = 14,449,966.31/5,158.01
  6. Step 6: Final answer
    x = 2,801.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.