Home / 3,007.31-4,149.90-1,681.11

Finding the Fourth Proportional to 3,007.31, 4,149.90 and 1,681.11

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Solution

The fourth proportional to 3,007.31, 4,149.90 and 1,681.11 is: 2,319.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.31 : 4,149.90 = 1,681.11 : x
  2. Step 2: Convert to fraction form
    3,007.31/4,149.90 = 1,681.11/x
  3. Step 3: Cross multiply
    3,007.31x = 4,149.90 × 1,681.11
  4. Step 4: Simplify right side
    3,007.31x = 6,976,438.39
  5. Step 5: Solve for x
    x = 6,976,438.39/3,007.31
  6. Step 6: Final answer
    x = 2,319.83

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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.