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Finding the Fourth Proportional to 3,079.76, 4,250.07 and 1,900.53

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Solution

The fourth proportional to 3,079.76, 4,250.07 and 1,900.53 is: 2,622.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.76 : 4,250.07 = 1,900.53 : x
  2. Step 2: Convert to fraction form
    3,079.76/4,250.07 = 1,900.53/x
  3. Step 3: Cross multiply
    3,079.76x = 4,250.07 × 1,900.53
  4. Step 4: Simplify right side
    3,079.76x = 8,077,385.54
  5. Step 5: Solve for x
    x = 8,077,385.54/3,079.76
  6. Step 6: Final answer
    x = 2,622.74

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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.