Home / 7,791.17-11,686.75-1,947.83

Finding the Fourth Proportional to 7,791.17, 11,686.75 and 1,947.83

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Solution

The fourth proportional to 7,791.17, 11,686.75 and 1,947.83 is: 2,921.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.17 : 11,686.75 = 1,947.83 : x
  2. Step 2: Convert to fraction form
    7,791.17/11,686.75 = 1,947.83/x
  3. Step 3: Cross multiply
    7,791.17x = 11,686.75 × 1,947.83
  4. Step 4: Simplify right side
    7,791.17x = 22,763,738.95
  5. Step 5: Solve for x
    x = 22,763,738.95/7,791.17
  6. Step 6: Final answer
    x = 2,921.74

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1.5x scale

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.