Home / 7,789.36-10,749.28-4,252.56

Finding the Fourth Proportional to 7,789.36, 10,749.28 and 4,252.56

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Solution

The fourth proportional to 7,789.36, 10,749.28 and 4,252.56 is: 5,868.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,789.36 : 10,749.28 = 4,252.56 : x
  2. Step 2: Convert to fraction form
    7,789.36/10,749.28 = 4,252.56/x
  3. Step 3: Cross multiply
    7,789.36x = 10,749.28 × 4,252.56
  4. Step 4: Simplify right side
    7,789.36x = 45,711,958.16
  5. Step 5: Solve for x
    x = 45,711,958.16/7,789.36
  6. Step 6: Final answer
    x = 5,868.51

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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.