Home / 5,530.18-7,630.65-3,172.42

Finding the Fourth Proportional to 5,530.18, 7,630.65 and 3,172.42

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Solution

The fourth proportional to 5,530.18, 7,630.65 and 3,172.42 is: 4,377.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.18 : 7,630.65 = 3,172.42 : x
  2. Step 2: Convert to fraction form
    5,530.18/7,630.65 = 3,172.42/x
  3. Step 3: Cross multiply
    5,530.18x = 7,630.65 × 3,172.42
  4. Step 4: Simplify right side
    5,530.18x = 24,207,626.67
  5. Step 5: Solve for x
    x = 24,207,626.67/5,530.18
  6. Step 6: Final answer
    x = 4,377.37

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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.