Home / 7,936.10-10,961.16-5,278.76

Finding the Fourth Proportional to 7,936.10, 10,961.16 and 5,278.76

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Solution

The fourth proportional to 7,936.10, 10,961.16 and 5,278.76 is: 7,290.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.10 : 10,961.16 = 5,278.76 : x
  2. Step 2: Convert to fraction form
    7,936.10/10,961.16 = 5,278.76/x
  3. Step 3: Cross multiply
    7,936.10x = 10,961.16 × 5,278.76
  4. Step 4: Simplify right side
    7,936.10x = 57,861,332.96
  5. Step 5: Solve for x
    x = 57,861,332.96/7,936.10
  6. Step 6: Final answer
    x = 7,290.90

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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.