Home / 2,170.38-3,256.05-1,015.50

Finding the Fourth Proportional to 2,170.38, 3,256.05 and 1,015.50

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Solution

The fourth proportional to 2,170.38, 3,256.05 and 1,015.50 is: 1,523.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.38 : 3,256.05 = 1,015.50 : x
  2. Step 2: Convert to fraction form
    2,170.38/3,256.05 = 1,015.50/x
  3. Step 3: Cross multiply
    2,170.38x = 3,256.05 × 1,015.50
  4. Step 4: Simplify right side
    2,170.38x = 3,306,518.78
  5. Step 5: Solve for x
    x = 3,306,518.78/2,170.38
  6. Step 6: Final answer
    x = 1,523.47

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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.