Home / 2,472.45-3,711.30-1,378.95

Finding the Fourth Proportional to 2,472.45, 3,711.30 and 1,378.95

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Solution

The fourth proportional to 2,472.45, 3,711.30 and 1,378.95 is: 2,069.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,472.45 : 3,711.30 = 1,378.95 : x
  2. Step 2: Convert to fraction form
    2,472.45/3,711.30 = 1,378.95/x
  3. Step 3: Cross multiply
    2,472.45x = 3,711.30 × 1,378.95
  4. Step 4: Simplify right side
    2,472.45x = 5,117,697.14
  5. Step 5: Solve for x
    x = 5,117,697.14/2,472.45
  6. Step 6: Final answer
    x = 2,069.89

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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.