Home / 6,543.75-9,030.31-3,891.11

Finding the Fourth Proportional to 6,543.75, 9,030.31 and 3,891.11

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Solution

The fourth proportional to 6,543.75, 9,030.31 and 3,891.11 is: 5,369.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,543.75 : 9,030.31 = 3,891.11 : x
  2. Step 2: Convert to fraction form
    6,543.75/9,030.31 = 3,891.11/x
  3. Step 3: Cross multiply
    6,543.75x = 9,030.31 × 3,891.11
  4. Step 4: Simplify right side
    6,543.75x = 35,137,874.66
  5. Step 5: Solve for x
    x = 35,137,874.66/6,543.75
  6. Step 6: Final answer
    x = 5,369.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.