Home / 1,215.33-1,821.92-565.71

Finding the Fourth Proportional to 1,215.33, 1,821.92 and 565.71

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Solution

The fourth proportional to 1,215.33, 1,821.92 and 565.71 is: 848.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215.33 : 1,821.92 = 565.71 : x
  2. Step 2: Convert to fraction form
    1,215.33/1,821.92 = 565.71/x
  3. Step 3: Cross multiply
    1,215.33x = 1,821.92 × 565.71
  4. Step 4: Simplify right side
    1,215.33x = 1,030,675.53
  5. Step 5: Solve for x
    x = 1,030,675.53/1,215.33
  6. Step 6: Final answer
    x = 848.06

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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.