Home / 7,789.45-10,749.38-4,252.66

Finding the Fourth Proportional to 7,789.45, 10,749.38 and 4,252.66

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Solution

The fourth proportional to 7,789.45, 10,749.38 and 4,252.66 is: 5,868.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.45 : 10,749.38 = 4,252.66 : x
  2. Step 2: Convert to fraction form
    7,789.45/10,749.38 = 4,252.66/x
  3. Step 3: Cross multiply
    7,789.45x = 10,749.38 × 4,252.66
  4. Step 4: Simplify right side
    7,789.45x = 45,713,458.35
  5. Step 5: Solve for x
    x = 45,713,458.35/7,789.45
  6. Step 6: Final answer
    x = 5,868.64

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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.