Home / 3,141.76-4,707.24-2,215.66

Finding the Fourth Proportional to 3,141.76, 4,707.24 and 2,215.66

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Solution

The fourth proportional to 3,141.76, 4,707.24 and 2,215.66 is: 3,319.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141.76 : 4,707.24 = 2,215.66 : x
  2. Step 2: Convert to fraction form
    3,141.76/4,707.24 = 2,215.66/x
  3. Step 3: Cross multiply
    3,141.76x = 4,707.24 × 2,215.66
  4. Step 4: Simplify right side
    3,141.76x = 10,429,643.38
  5. Step 5: Solve for x
    x = 10,429,643.38/3,141.76
  6. Step 6: Final answer
    x = 3,319.68

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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.