Home / 7,714.11-11,569.69-3,761.40

Finding the Fourth Proportional to 7,714.11, 11,569.69 and 3,761.40

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Solution

The fourth proportional to 7,714.11, 11,569.69 and 3,761.40 is: 5,641.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,714.11 : 11,569.69 = 3,761.40 : x
  2. Step 2: Convert to fraction form
    7,714.11/11,569.69 = 3,761.40/x
  3. Step 3: Cross multiply
    7,714.11x = 11,569.69 × 3,761.40
  4. Step 4: Simplify right side
    7,714.11x = 43,518,174.12
  5. Step 5: Solve for x
    x = 43,518,174.12/7,714.11
  6. Step 6: Final answer
    x = 5,641.38

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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.