Home / 3,488.28-5,225.88-2,101.92

Finding the Fourth Proportional to 3,488.28, 5,225.88 and 2,101.92

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Solution

The fourth proportional to 3,488.28, 5,225.88 and 2,101.92 is: 3,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,488.28 : 5,225.88 = 2,101.92 : x
  2. Step 2: Convert to fraction form
    3,488.28/5,225.88 = 2,101.92/x
  3. Step 3: Cross multiply
    3,488.28x = 5,225.88 × 2,101.92
  4. Step 4: Simplify right side
    3,488.28x = 10,984,381.69
  5. Step 5: Solve for x
    x = 10,984,381.69/3,488.28
  6. Step 6: Final answer
    x = 3,148.94

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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.