Home / 5,530.41-7,631.51-3,172.05

Finding the Fourth Proportional to 5,530.41, 7,631.51 and 3,172.05

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Solution

The fourth proportional to 5,530.41, 7,631.51 and 3,172.05 is: 4,377.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,530.41 : 7,631.51 = 3,172.05 : x
  2. Step 2: Convert to fraction form
    5,530.41/7,631.51 = 3,172.05/x
  3. Step 3: Cross multiply
    5,530.41x = 7,631.51 × 3,172.05
  4. Step 4: Simplify right side
    5,530.41x = 24,207,515.44
  5. Step 5: Solve for x
    x = 24,207,515.44/5,530.41
  6. Step 6: Final answer
    x = 4,377.16

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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.