Home / 7,381.12-11,071.68-2,702.08

Finding the Fourth Proportional to 7,381.12, 11,071.68 and 2,702.08

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Solution

The fourth proportional to 7,381.12, 11,071.68 and 2,702.08 is: 4,053.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.12 : 11,071.68 = 2,702.08 : x
  2. Step 2: Convert to fraction form
    7,381.12/11,071.68 = 2,702.08/x
  3. Step 3: Cross multiply
    7,381.12x = 11,071.68 × 2,702.08
  4. Step 4: Simplify right side
    7,381.12x = 29,916,565.09
  5. Step 5: Solve for x
    x = 29,916,565.09/7,381.12
  6. Step 6: Final answer
    x = 4,053.12

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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.