Home / 4,719.20-6,517.20-3,888.14

Finding the Fourth Proportional to 4,719.20, 6,517.20 and 3,888.14

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Solution

The fourth proportional to 4,719.20, 6,517.20 and 3,888.14 is: 5,369.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,719.20 : 6,517.20 = 3,888.14 : x
  2. Step 2: Convert to fraction form
    4,719.20/6,517.20 = 3,888.14/x
  3. Step 3: Cross multiply
    4,719.20x = 6,517.20 × 3,888.14
  4. Step 4: Simplify right side
    4,719.20x = 25,339,786.01
  5. Step 5: Solve for x
    x = 25,339,786.01/4,719.20
  6. Step 6: Final answer
    x = 5,369.51

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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.