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Finding the Fourth Proportional to 2,576.40, 3,863.58 and 932.46

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Solution

The fourth proportional to 2,576.40, 3,863.58 and 932.46 is: 1,398.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,576.40 : 3,863.58 = 932.46 : x
  2. Step 2: Convert to fraction form
    2,576.40/3,863.58 = 932.46/x
  3. Step 3: Cross multiply
    2,576.40x = 3,863.58 × 932.46
  4. Step 4: Simplify right side
    2,576.40x = 3,602,633.81
  5. Step 5: Solve for x
    x = 3,602,633.81/2,576.40
  6. Step 6: Final answer
    x = 1,398.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.