Home / 7,789.58-10,749.56-4,252.78

Finding the Fourth Proportional to 7,789.58, 10,749.56 and 4,252.78

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Solution

The fourth proportional to 7,789.58, 10,749.56 and 4,252.78 is: 5,868.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.58 : 10,749.56 = 4,252.78 : x
  2. Step 2: Convert to fraction form
    7,789.58/10,749.56 = 4,252.78/x
  3. Step 3: Cross multiply
    7,789.58x = 10,749.56 × 4,252.78
  4. Step 4: Simplify right side
    7,789.58x = 45,715,505.95
  5. Step 5: Solve for x
    x = 45,715,505.95/7,789.58
  6. Step 6: Final answer
    x = 5,868.80

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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.