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Finding the Fourth Proportional to 3,891.00, 5,831.04 and 1,695.13

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Solution

The fourth proportional to 3,891.00, 5,831.04 and 1,695.13 is: 2,540.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,891.00 : 5,831.04 = 1,695.13 : x
  2. Step 2: Convert to fraction form
    3,891.00/5,831.04 = 1,695.13/x
  3. Step 3: Cross multiply
    3,891.00x = 5,831.04 × 1,695.13
  4. Step 4: Simplify right side
    3,891.00x = 9,884,353.08
  5. Step 5: Solve for x
    x = 9,884,353.08/3,891.00
  6. Step 6: Final answer
    x = 2,540.31

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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.