Home / 7,947.81-11,921.76-2,401.13

Finding the Fourth Proportional to 7,947.81, 11,921.76 and 2,401.13

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Solution

The fourth proportional to 7,947.81, 11,921.76 and 2,401.13 is: 3,601.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,947.81 : 11,921.76 = 2,401.13 : x
  2. Step 2: Convert to fraction form
    7,947.81/11,921.76 = 2,401.13/x
  3. Step 3: Cross multiply
    7,947.81x = 11,921.76 × 2,401.13
  4. Step 4: Simplify right side
    7,947.81x = 28,625,695.59
  5. Step 5: Solve for x
    x = 28,625,695.59/7,947.81
  6. Step 6: Final answer
    x = 3,601.71

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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.