Home / 4,178.76-6,265.71-1,581.90

Finding the Fourth Proportional to 4,178.76, 6,265.71 and 1,581.90

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Solution

The fourth proportional to 4,178.76, 6,265.71 and 1,581.90 is: 2,371.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.76 : 6,265.71 = 1,581.90 : x
  2. Step 2: Convert to fraction form
    4,178.76/6,265.71 = 1,581.90/x
  3. Step 3: Cross multiply
    4,178.76x = 6,265.71 × 1,581.90
  4. Step 4: Simplify right side
    4,178.76x = 9,911,726.65
  5. Step 5: Solve for x
    x = 9,911,726.65/4,178.76
  6. Step 6: Final answer
    x = 2,371.93

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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.