Home / 7,791.04-11,686.56-1,947.64

Finding the Fourth Proportional to 7,791.04, 11,686.56 and 1,947.64

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Solution

The fourth proportional to 7,791.04, 11,686.56 and 1,947.64 is: 2,921.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.04 : 11,686.56 = 1,947.64 : x
  2. Step 2: Convert to fraction form
    7,791.04/11,686.56 = 1,947.64/x
  3. Step 3: Cross multiply
    7,791.04x = 11,686.56 × 1,947.64
  4. Step 4: Simplify right side
    7,791.04x = 22,761,211.72
  5. Step 5: Solve for x
    x = 22,761,211.72/7,791.04
  6. Step 6: Final answer
    x = 2,921.46

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Similar ratio
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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.