Home / 3,098.84-4,272.79-2,311.52

Finding the Fourth Proportional to 3,098.84, 4,272.79 and 2,311.52

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Solution

The fourth proportional to 3,098.84, 4,272.79 and 2,311.52 is: 3,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.84 : 4,272.79 = 2,311.52 : x
  2. Step 2: Convert to fraction form
    3,098.84/4,272.79 = 2,311.52/x
  3. Step 3: Cross multiply
    3,098.84x = 4,272.79 × 2,311.52
  4. Step 4: Simplify right side
    3,098.84x = 9,876,633.76
  5. Step 5: Solve for x
    x = 9,876,633.76/3,098.84
  6. Step 6: Final answer
    x = 3,187.20

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1.5x scale

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.