Home / 7,859.28-11,790.92-2,312.82

Finding the Fourth Proportional to 7,859.28, 11,790.92 and 2,312.82

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Solution

The fourth proportional to 7,859.28, 11,790.92 and 2,312.82 is: 3,469.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,859.28 : 11,790.92 = 2,312.82 : x
  2. Step 2: Convert to fraction form
    7,859.28/11,790.92 = 2,312.82/x
  3. Step 3: Cross multiply
    7,859.28x = 11,790.92 × 2,312.82
  4. Step 4: Simplify right side
    7,859.28x = 27,270,275.59
  5. Step 5: Solve for x
    x = 27,270,275.59/7,859.28
  6. Step 6: Final answer
    x = 3,469.82

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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.