Home / 2,717.57-3,750.35-1,538.75

Finding the Fourth Proportional to 2,717.57, 3,750.35 and 1,538.75

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Solution

The fourth proportional to 2,717.57, 3,750.35 and 1,538.75 is: 2,123.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.57 : 3,750.35 = 1,538.75 : x
  2. Step 2: Convert to fraction form
    2,717.57/3,750.35 = 1,538.75/x
  3. Step 3: Cross multiply
    2,717.57x = 3,750.35 × 1,538.75
  4. Step 4: Simplify right side
    2,717.57x = 5,770,824.62
  5. Step 5: Solve for x
    x = 5,770,824.62/2,717.57
  6. Step 6: Final answer
    x = 2,123.53

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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.