Home / 2,538.40-3,503.66-2,275.96

Finding the Fourth Proportional to 2,538.40, 3,503.66 and 2,275.96

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Solution

The fourth proportional to 2,538.40, 3,503.66 and 2,275.96 is: 3,141.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,538.40 : 3,503.66 = 2,275.96 : x
  2. Step 2: Convert to fraction form
    2,538.40/3,503.66 = 2,275.96/x
  3. Step 3: Cross multiply
    2,538.40x = 3,503.66 × 2,275.96
  4. Step 4: Simplify right side
    2,538.40x = 7,974,190.01
  5. Step 5: Solve for x
    x = 7,974,190.01/2,538.40
  6. Step 6: Final answer
    x = 3,141.42

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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.