Home / 5,418.80-7,478.06-3,061.12

Finding the Fourth Proportional to 5,418.80, 7,478.06 and 3,061.12

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Solution

The fourth proportional to 5,418.80, 7,478.06 and 3,061.12 is: 4,224.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418.80 : 7,478.06 = 3,061.12 : x
  2. Step 2: Convert to fraction form
    5,418.80/7,478.06 = 3,061.12/x
  3. Step 3: Cross multiply
    5,418.80x = 7,478.06 × 3,061.12
  4. Step 4: Simplify right side
    5,418.80x = 22,891,239.03
  5. Step 5: Solve for x
    x = 22,891,239.03/5,418.80
  6. Step 6: Final answer
    x = 4,224.41

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1.5x scale

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.