Home / 3,678.40-5,517.92-1,045.92

Finding the Fourth Proportional to 3,678.40, 5,517.92 and 1,045.92

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Solution

The fourth proportional to 3,678.40, 5,517.92 and 1,045.92 is: 1,568.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.40 : 5,517.92 = 1,045.92 : x
  2. Step 2: Convert to fraction form
    3,678.40/5,517.92 = 1,045.92/x
  3. Step 3: Cross multiply
    3,678.40x = 5,517.92 × 1,045.92
  4. Step 4: Simplify right side
    3,678.40x = 5,771,302.89
  5. Step 5: Solve for x
    x = 5,771,302.89/3,678.40
  6. Step 6: Final answer
    x = 1,568.97

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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.