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Finding the Fourth Proportional to 1,356.18, 2,034.64 and 576.22

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Solution

The fourth proportional to 1,356.18, 2,034.64 and 576.22 is: 864.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,356.18 : 2,034.64 = 576.22 : x
  2. Step 2: Convert to fraction form
    1,356.18/2,034.64 = 576.22/x
  3. Step 3: Cross multiply
    1,356.18x = 2,034.64 × 576.22
  4. Step 4: Simplify right side
    1,356.18x = 1,172,400.26
  5. Step 5: Solve for x
    x = 1,172,400.26/1,356.18
  6. Step 6: Final answer
    x = 864.49

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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.