Home / 7,140.31-10,691.84-5,746.03

Finding the Fourth Proportional to 7,140.31, 10,691.84 and 5,746.03

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Solution

The fourth proportional to 7,140.31, 10,691.84 and 5,746.03 is: 8,604.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140.31 : 10,691.84 = 5,746.03 : x
  2. Step 2: Convert to fraction form
    7,140.31/10,691.84 = 5,746.03/x
  3. Step 3: Cross multiply
    7,140.31x = 10,691.84 × 5,746.03
  4. Step 4: Simplify right side
    7,140.31x = 61,435,648.85
  5. Step 5: Solve for x
    x = 61,435,648.85/7,140.31
  6. Step 6: Final answer
    x = 8,604.06

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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.