Home / 5,728.52-7,897.98-3,708.35

Finding the Fourth Proportional to 5,728.52, 7,897.98 and 3,708.35

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Solution

The fourth proportional to 5,728.52, 7,897.98 and 3,708.35 is: 5,112.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.52 : 7,897.98 = 3,708.35 : x
  2. Step 2: Convert to fraction form
    5,728.52/7,897.98 = 3,708.35/x
  3. Step 3: Cross multiply
    5,728.52x = 7,897.98 × 3,708.35
  4. Step 4: Simplify right side
    5,728.52x = 29,288,474.13
  5. Step 5: Solve for x
    x = 29,288,474.13/5,728.52
  6. Step 6: Final answer
    x = 5,112.75

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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.