Home / 6,897.38-9,517.73-3,871.81

Finding the Fourth Proportional to 6,897.38, 9,517.73 and 3,871.81

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Solution

The fourth proportional to 6,897.38, 9,517.73 and 3,871.81 is: 5,342.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,897.38 : 9,517.73 = 3,871.81 : x
  2. Step 2: Convert to fraction form
    6,897.38/9,517.73 = 3,871.81/x
  3. Step 3: Cross multiply
    6,897.38x = 9,517.73 × 3,871.81
  4. Step 4: Simplify right side
    6,897.38x = 36,850,856.51
  5. Step 5: Solve for x
    x = 36,850,856.51/6,897.38
  6. Step 6: Final answer
    x = 5,342.73

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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.