Home / 3,927.09-5,418.30-2,530.65

Finding the Fourth Proportional to 3,927.09, 5,418.30 and 2,530.65

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Solution

The fourth proportional to 3,927.09, 5,418.30 and 2,530.65 is: 3,491.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,927.09 : 5,418.30 = 2,530.65 : x
  2. Step 2: Convert to fraction form
    3,927.09/5,418.30 = 2,530.65/x
  3. Step 3: Cross multiply
    3,927.09x = 5,418.30 × 2,530.65
  4. Step 4: Simplify right side
    3,927.09x = 13,711,820.90
  5. Step 5: Solve for x
    x = 13,711,820.90/3,927.09
  6. Step 6: Final answer
    x = 3,491.60

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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.