Home / 5,921.05-8,172.10-3,531.17

Finding the Fourth Proportional to 5,921.05, 8,172.10 and 3,531.17

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Solution

The fourth proportional to 5,921.05, 8,172.10 and 3,531.17 is: 4,873.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,921.05 : 8,172.10 = 3,531.17 : x
  2. Step 2: Convert to fraction form
    5,921.05/8,172.10 = 3,531.17/x
  3. Step 3: Cross multiply
    5,921.05x = 8,172.10 × 3,531.17
  4. Step 4: Simplify right side
    5,921.05x = 28,857,085.96
  5. Step 5: Solve for x
    x = 28,857,085.96/5,921.05
  6. Step 6: Final answer
    x = 4,873.65

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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.