Home / 7,799.49-11,691.95-2,865.78

Finding the Fourth Proportional to 7,799.49, 11,691.95 and 2,865.78

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Solution

The fourth proportional to 7,799.49, 11,691.95 and 2,865.78 is: 4,295.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,799.49 : 11,691.95 = 2,865.78 : x
  2. Step 2: Convert to fraction form
    7,799.49/11,691.95 = 2,865.78/x
  3. Step 3: Cross multiply
    7,799.49x = 11,691.95 × 2,865.78
  4. Step 4: Simplify right side
    7,799.49x = 33,506,542.14
  5. Step 5: Solve for x
    x = 33,506,542.14/7,799.49
  6. Step 6: Final answer
    x = 4,295.99

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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.