Home / 8,791.19-13,186.71-2,947.76

Finding the Fourth Proportional to 8,791.19, 13,186.71 and 2,947.76

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Solution

The fourth proportional to 8,791.19, 13,186.71 and 2,947.76 is: 4,421.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.19 : 13,186.71 = 2,947.76 : x
  2. Step 2: Convert to fraction form
    8,791.19/13,186.71 = 2,947.76/x
  3. Step 3: Cross multiply
    8,791.19x = 13,186.71 × 2,947.76
  4. Step 4: Simplify right side
    8,791.19x = 38,871,190.34
  5. Step 5: Solve for x
    x = 38,871,190.34/8,791.19
  6. Step 6: Final answer
    x = 4,421.61

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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.