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Finding the Fourth Proportional to 1,895.06, 2,842.16 and 724.66

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Solution

The fourth proportional to 1,895.06, 2,842.16 and 724.66 is: 1,086.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,895.06 : 2,842.16 = 724.66 : x
  2. Step 2: Convert to fraction form
    1,895.06/2,842.16 = 724.66/x
  3. Step 3: Cross multiply
    1,895.06x = 2,842.16 × 724.66
  4. Step 4: Simplify right side
    1,895.06x = 2,059,588.94
  5. Step 5: Solve for x
    x = 2,059,588.94/1,895.06
  6. Step 6: Final answer
    x = 1,086.82

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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.