Home / 2,286.68-3,430.02-1,247.72

Finding the Fourth Proportional to 2,286.68, 3,430.02 and 1,247.72

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Solution

The fourth proportional to 2,286.68, 3,430.02 and 1,247.72 is: 1,871.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286.68 : 3,430.02 = 1,247.72 : x
  2. Step 2: Convert to fraction form
    2,286.68/3,430.02 = 1,247.72/x
  3. Step 3: Cross multiply
    2,286.68x = 3,430.02 × 1,247.72
  4. Step 4: Simplify right side
    2,286.68x = 4,279,704.55
  5. Step 5: Solve for x
    x = 4,279,704.55/2,286.68
  6. Step 6: Final answer
    x = 1,871.58

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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.