Home / 2,275.11-3,429.39-2,087.85

Finding the Fourth Proportional to 2,275.11, 3,429.39 and 2,087.85

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Solution

The fourth proportional to 2,275.11, 3,429.39 and 2,087.85 is: 3,147.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,275.11 : 3,429.39 = 2,087.85 : x
  2. Step 2: Convert to fraction form
    2,275.11/3,429.39 = 2,087.85/x
  3. Step 3: Cross multiply
    2,275.11x = 3,429.39 × 2,087.85
  4. Step 4: Simplify right side
    2,275.11x = 7,160,051.91
  5. Step 5: Solve for x
    x = 7,160,051.91/2,275.11
  6. Step 6: Final answer
    x = 3,147.12

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.