Home / 2,874.11-4,307.56-1,228.73

Finding the Fourth Proportional to 2,874.11, 4,307.56 and 1,228.73

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Solution

The fourth proportional to 2,874.11, 4,307.56 and 1,228.73 is: 1,841.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,874.11 : 4,307.56 = 1,228.73 : x
  2. Step 2: Convert to fraction form
    2,874.11/4,307.56 = 1,228.73/x
  3. Step 3: Cross multiply
    2,874.11x = 4,307.56 × 1,228.73
  4. Step 4: Simplify right side
    2,874.11x = 5,292,803.59
  5. Step 5: Solve for x
    x = 5,292,803.59/2,874.11
  6. Step 6: Final answer
    x = 1,841.54

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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.