Home / 2,615.82-3,925.52-1,691.81

Finding the Fourth Proportional to 2,615.82, 3,925.52 and 1,691.81

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Solution

The fourth proportional to 2,615.82, 3,925.52 and 1,691.81 is: 2,538.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,615.82 : 3,925.52 = 1,691.81 : x
  2. Step 2: Convert to fraction form
    2,615.82/3,925.52 = 1,691.81/x
  3. Step 3: Cross multiply
    2,615.82x = 3,925.52 × 1,691.81
  4. Step 4: Simplify right side
    2,615.82x = 6,641,233.99
  5. Step 5: Solve for x
    x = 6,641,233.99/2,615.82
  6. Step 6: Final answer
    x = 2,538.87

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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.