Home / 7,680.29-11,510.85-3,292.66

Finding the Fourth Proportional to 7,680.29, 11,510.85 and 3,292.66

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Solution

The fourth proportional to 7,680.29, 11,510.85 and 3,292.66 is: 4,934.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.29 : 11,510.85 = 3,292.66 : x
  2. Step 2: Convert to fraction form
    7,680.29/11,510.85 = 3,292.66/x
  3. Step 3: Cross multiply
    7,680.29x = 11,510.85 × 3,292.66
  4. Step 4: Simplify right side
    7,680.29x = 37,901,257.81
  5. Step 5: Solve for x
    x = 37,901,257.81/7,680.29
  6. Step 6: Final answer
    x = 4,934.87

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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.