Home / 7,822.52-11,733.80-1,979.13

Finding the Fourth Proportional to 7,822.52, 11,733.80 and 1,979.13

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Solution

The fourth proportional to 7,822.52, 11,733.80 and 1,979.13 is: 2,968.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,822.52 : 11,733.80 = 1,979.13 : x
  2. Step 2: Convert to fraction form
    7,822.52/11,733.80 = 1,979.13/x
  3. Step 3: Cross multiply
    7,822.52x = 11,733.80 × 1,979.13
  4. Step 4: Simplify right side
    7,822.52x = 23,222,749.70
  5. Step 5: Solve for x
    x = 23,222,749.70/7,822.52
  6. Step 6: Final answer
    x = 2,968.70

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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.