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Finding the Fourth Proportional to 3,891.04, 5,331.04 and 3,842.48

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Solution

The fourth proportional to 3,891.04, 5,331.04 and 3,842.48 is: 5,264.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.04 : 5,331.04 = 3,842.48 : x
  2. Step 2: Convert to fraction form
    3,891.04/5,331.04 = 3,842.48/x
  3. Step 3: Cross multiply
    3,891.04x = 5,331.04 × 3,842.48
  4. Step 4: Simplify right side
    3,891.04x = 20,484,414.58
  5. Step 5: Solve for x
    x = 20,484,414.58/3,891.04
  6. Step 6: Final answer
    x = 5,264.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.