Home / 3,780.25-5,670.38-1,471.75

Finding the Fourth Proportional to 3,780.25, 5,670.38 and 1,471.75

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Solution

The fourth proportional to 3,780.25, 5,670.38 and 1,471.75 is: 2,207.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,780.25 : 5,670.38 = 1,471.75 : x
  2. Step 2: Convert to fraction form
    3,780.25/5,670.38 = 1,471.75/x
  3. Step 3: Cross multiply
    3,780.25x = 5,670.38 × 1,471.75
  4. Step 4: Simplify right side
    3,780.25x = 8,345,381.77
  5. Step 5: Solve for x
    x = 8,345,381.77/3,780.25
  6. Step 6: Final answer
    x = 2,207.63

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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.