Home / 8,902.31-13,353.46-2,978.04

Finding the Fourth Proportional to 8,902.31, 13,353.46 and 2,978.04

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Solution

The fourth proportional to 8,902.31, 13,353.46 and 2,978.04 is: 4,467.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.31 : 13,353.46 = 2,978.04 : x
  2. Step 2: Convert to fraction form
    8,902.31/13,353.46 = 2,978.04/x
  3. Step 3: Cross multiply
    8,902.31x = 13,353.46 × 2,978.04
  4. Step 4: Simplify right side
    8,902.31x = 39,767,143.09
  5. Step 5: Solve for x
    x = 39,767,143.09/8,902.31
  6. Step 6: Final answer
    x = 4,467.06

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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.