Home / 5,447.24-7,519.44-4,121.36

Finding the Fourth Proportional to 5,447.24, 7,519.44 and 4,121.36

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Solution

The fourth proportional to 5,447.24, 7,519.44 and 4,121.36 is: 5,689.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.24 : 7,519.44 = 4,121.36 : x
  2. Step 2: Convert to fraction form
    5,447.24/7,519.44 = 4,121.36/x
  3. Step 3: Cross multiply
    5,447.24x = 7,519.44 × 4,121.36
  4. Step 4: Simplify right side
    5,447.24x = 30,990,319.24
  5. Step 5: Solve for x
    x = 30,990,319.24/5,447.24
  6. Step 6: Final answer
    x = 5,689.18

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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.