Home / 7,105.73-10,660.82-2,947.70

Finding the Fourth Proportional to 7,105.73, 10,660.82 and 2,947.70

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Solution

The fourth proportional to 7,105.73, 10,660.82 and 2,947.70 is: 4,422.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,105.73 : 10,660.82 = 2,947.70 : x
  2. Step 2: Convert to fraction form
    7,105.73/10,660.82 = 2,947.70/x
  3. Step 3: Cross multiply
    7,105.73x = 10,660.82 × 2,947.70
  4. Step 4: Simplify right side
    7,105.73x = 31,424,831.07
  5. Step 5: Solve for x
    x = 31,424,831.07/7,105.73
  6. Step 6: Final answer
    x = 4,422.47

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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.