Home / 2,620.17-3,931.61-1,451.12

Finding the Fourth Proportional to 2,620.17, 3,931.61 and 1,451.12

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Solution

The fourth proportional to 2,620.17, 3,931.61 and 1,451.12 is: 2,177.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.17 : 3,931.61 = 1,451.12 : x
  2. Step 2: Convert to fraction form
    2,620.17/3,931.61 = 1,451.12/x
  3. Step 3: Cross multiply
    2,620.17x = 3,931.61 × 1,451.12
  4. Step 4: Simplify right side
    2,620.17x = 5,705,210.99
  5. Step 5: Solve for x
    x = 5,705,210.99/2,620.17
  6. Step 6: Final answer
    x = 2,177.42

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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.