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Finding the Fourth Proportional to 983.34, 1,356.96 and 541.29

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Solution

The fourth proportional to 983.34, 1,356.96 and 541.29 is: 746.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    983.34 : 1,356.96 = 541.29 : x
  2. Step 2: Convert to fraction form
    983.34/1,356.96 = 541.29/x
  3. Step 3: Cross multiply
    983.34x = 1,356.96 × 541.29
  4. Step 4: Simplify right side
    983.34x = 734,508.88
  5. Step 5: Solve for x
    x = 734,508.88/983.34
  6. Step 6: Final answer
    x = 746.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.