Home / 5,418.95-7,478.12-3,061.09

Finding the Fourth Proportional to 5,418.95, 7,478.12 and 3,061.09

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Solution

The fourth proportional to 5,418.95, 7,478.12 and 3,061.09 is: 4,224.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.95 : 7,478.12 = 3,061.09 : x
  2. Step 2: Convert to fraction form
    5,418.95/7,478.12 = 3,061.09/x
  3. Step 3: Cross multiply
    5,418.95x = 7,478.12 × 3,061.09
  4. Step 4: Simplify right side
    5,418.95x = 22,891,145.65
  5. Step 5: Solve for x
    x = 22,891,145.65/5,418.95
  6. Step 6: Final answer
    x = 4,224.28

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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.