Home / 4,301.16-6,438.78-3,147.72

Finding the Fourth Proportional to 4,301.16, 6,438.78 and 3,147.72

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Solution

The fourth proportional to 4,301.16, 6,438.78 and 3,147.72 is: 4,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,301.16 : 6,438.78 = 3,147.72 : x
  2. Step 2: Convert to fraction form
    4,301.16/6,438.78 = 3,147.72/x
  3. Step 3: Cross multiply
    4,301.16x = 6,438.78 × 3,147.72
  4. Step 4: Simplify right side
    4,301.16x = 20,267,476.58
  5. Step 5: Solve for x
    x = 20,267,476.58/4,301.16
  6. Step 6: Final answer
    x = 4,712.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.