Home / 3,500.21-5,250.32-1,191.71

Finding the Fourth Proportional to 3,500.21, 5,250.32 and 1,191.71

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Solution

The fourth proportional to 3,500.21, 5,250.32 and 1,191.71 is: 1,787.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,500.21 : 5,250.32 = 1,191.71 : x
  2. Step 2: Convert to fraction form
    3,500.21/5,250.32 = 1,191.71/x
  3. Step 3: Cross multiply
    3,500.21x = 5,250.32 × 1,191.71
  4. Step 4: Simplify right side
    3,500.21x = 6,256,860.94
  5. Step 5: Solve for x
    x = 6,256,860.94/3,500.21
  6. Step 6: Final answer
    x = 1,787.57

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Double scale
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Similar ratio
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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.