Home / 2,620.28-3,931.41-1,234.47

Finding the Fourth Proportional to 2,620.28, 3,931.41 and 1,234.47

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Solution

The fourth proportional to 2,620.28, 3,931.41 and 1,234.47 is: 1,852.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.28 : 3,931.41 = 1,234.47 : x
  2. Step 2: Convert to fraction form
    2,620.28/3,931.41 = 1,234.47/x
  3. Step 3: Cross multiply
    2,620.28x = 3,931.41 × 1,234.47
  4. Step 4: Simplify right side
    2,620.28x = 4,853,207.70
  5. Step 5: Solve for x
    x = 4,853,207.70/2,620.28
  6. Step 6: Final answer
    x = 1,852.17

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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.