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Finding the Fourth Proportional to 3,340.04, 5,010.05 and 1,148.78

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Solution

The fourth proportional to 3,340.04, 5,010.05 and 1,148.78 is: 1,723.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,340.04 : 5,010.05 = 1,148.78 : x
  2. Step 2: Convert to fraction form
    3,340.04/5,010.05 = 1,148.78/x
  3. Step 3: Cross multiply
    3,340.04x = 5,010.05 × 1,148.78
  4. Step 4: Simplify right side
    3,340.04x = 5,755,460.64
  5. Step 5: Solve for x
    x = 5,755,460.64/3,340.04
  6. Step 6: Final answer
    x = 1,723.17

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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.