Home / 1,581.43-2,371.76-470.63

Finding the Fourth Proportional to 1,581.43, 2,371.76 and 470.63

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Solution

The fourth proportional to 1,581.43, 2,371.76 and 470.63 is: 705.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581.43 : 2,371.76 = 470.63 : x
  2. Step 2: Convert to fraction form
    1,581.43/2,371.76 = 470.63/x
  3. Step 3: Cross multiply
    1,581.43x = 2,371.76 × 470.63
  4. Step 4: Simplify right side
    1,581.43x = 1,116,221.41
  5. Step 5: Solve for x
    x = 1,116,221.41/1,581.43
  6. Step 6: Final answer
    x = 705.83

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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.