Home / 5,247.10-7,865.78-1,957.69

Finding the Fourth Proportional to 5,247.10, 7,865.78 and 1,957.69

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Solution

The fourth proportional to 5,247.10, 7,865.78 and 1,957.69 is: 2,934.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,247.10 : 7,865.78 = 1,957.69 : x
  2. Step 2: Convert to fraction form
    5,247.10/7,865.78 = 1,957.69/x
  3. Step 3: Cross multiply
    5,247.10x = 7,865.78 × 1,957.69
  4. Step 4: Simplify right side
    5,247.10x = 15,398,719.52
  5. Step 5: Solve for x
    x = 15,398,719.52/5,247.10
  6. Step 6: Final answer
    x = 2,934.71

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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.