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Finding the Fourth Proportional to 7,048.50, 9,726.54 and 3,904.44

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Solution

The fourth proportional to 7,048.50, 9,726.54 and 3,904.44 is: 5,387.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,048.50 : 9,726.54 = 3,904.44 : x
  2. Step 2: Convert to fraction form
    7,048.50/9,726.54 = 3,904.44/x
  3. Step 3: Cross multiply
    7,048.50x = 9,726.54 × 3,904.44
  4. Step 4: Simplify right side
    7,048.50x = 37,976,691.84
  5. Step 5: Solve for x
    x = 37,976,691.84/7,048.50
  6. Step 6: Final answer
    x = 5,387.91

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1.5x scale

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.