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Finding the Fourth Proportional to 2,470.05, 3,703.80 and 738.45

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Solution

The fourth proportional to 2,470.05, 3,703.80 and 738.45 is: 1,107.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,470.05 : 3,703.80 = 738.45 : x
  2. Step 2: Convert to fraction form
    2,470.05/3,703.80 = 738.45/x
  3. Step 3: Cross multiply
    2,470.05x = 3,703.80 × 738.45
  4. Step 4: Simplify right side
    2,470.05x = 2,735,071.11
  5. Step 5: Solve for x
    x = 2,735,071.11/2,470.05
  6. Step 6: Final answer
    x = 1,107.29

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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.