Home / 4,425.20-6,638.17-1,138.29

Finding the Fourth Proportional to 4,425.20, 6,638.17 and 1,138.29

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Solution

The fourth proportional to 4,425.20, 6,638.17 and 1,138.29 is: 1,707.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,425.20 : 6,638.17 = 1,138.29 : x
  2. Step 2: Convert to fraction form
    4,425.20/6,638.17 = 1,138.29/x
  3. Step 3: Cross multiply
    4,425.20x = 6,638.17 × 1,138.29
  4. Step 4: Simplify right side
    4,425.20x = 7,556,162.53
  5. Step 5: Solve for x
    x = 7,556,162.53/4,425.20
  6. Step 6: Final answer
    x = 1,707.53

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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.