Home / 2,580.20-3,561.51-1,517.91

Finding the Fourth Proportional to 2,580.20, 3,561.51 and 1,517.91

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Solution

The fourth proportional to 2,580.20, 3,561.51 and 1,517.91 is: 2,095.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,580.20 : 3,561.51 = 1,517.91 : x
  2. Step 2: Convert to fraction form
    2,580.20/3,561.51 = 1,517.91/x
  3. Step 3: Cross multiply
    2,580.20x = 3,561.51 × 1,517.91
  4. Step 4: Simplify right side
    2,580.20x = 5,406,043.98
  5. Step 5: Solve for x
    x = 5,406,043.98/2,580.20
  6. Step 6: Final answer
    x = 2,095.20

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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.