Home / 7,305.78-10,961.73-3,146.70

Finding the Fourth Proportional to 7,305.78, 10,961.73 and 3,146.70

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Solution

The fourth proportional to 7,305.78, 10,961.73 and 3,146.70 is: 4,721.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,305.78 : 10,961.73 = 3,146.70 : x
  2. Step 2: Convert to fraction form
    7,305.78/10,961.73 = 3,146.70/x
  3. Step 3: Cross multiply
    7,305.78x = 10,961.73 × 3,146.70
  4. Step 4: Simplify right side
    7,305.78x = 34,493,275.79
  5. Step 5: Solve for x
    x = 34,493,275.79/7,305.78
  6. Step 6: Final answer
    x = 4,721.37

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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.