Home / 4,425.57-6,638.13-1,138.85

Finding the Fourth Proportional to 4,425.57, 6,638.13 and 1,138.85

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Solution

The fourth proportional to 4,425.57, 6,638.13 and 1,138.85 is: 1,708.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,425.57 : 6,638.13 = 1,138.85 : x
  2. Step 2: Convert to fraction form
    4,425.57/6,638.13 = 1,138.85/x
  3. Step 3: Cross multiply
    4,425.57x = 6,638.13 × 1,138.85
  4. Step 4: Simplify right side
    4,425.57x = 7,559,834.35
  5. Step 5: Solve for x
    x = 7,559,834.35/4,425.57
  6. Step 6: Final answer
    x = 1,708.22

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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.