Home / 7,948.97-10,951.77-5,291.77

Finding the Fourth Proportional to 7,948.97, 10,951.77 and 5,291.77

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Solution

The fourth proportional to 7,948.97, 10,951.77 and 5,291.77 is: 7,290.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.97 : 10,951.77 = 5,291.77 : x
  2. Step 2: Convert to fraction form
    7,948.97/10,951.77 = 5,291.77/x
  3. Step 3: Cross multiply
    7,948.97x = 10,951.77 × 5,291.77
  4. Step 4: Simplify right side
    7,948.97x = 57,954,247.93
  5. Step 5: Solve for x
    x = 57,954,247.93/7,948.97
  6. Step 6: Final answer
    x = 7,290.79

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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.