Home / 2,717.90-3,750.82-1,538.94

Finding the Fourth Proportional to 2,717.90, 3,750.82 and 1,538.94

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Solution

The fourth proportional to 2,717.90, 3,750.82 and 1,538.94 is: 2,123.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.90 : 3,750.82 = 1,538.94 : x
  2. Step 2: Convert to fraction form
    2,717.90/3,750.82 = 1,538.94/x
  3. Step 3: Cross multiply
    2,717.90x = 3,750.82 × 1,538.94
  4. Step 4: Simplify right side
    2,717.90x = 5,772,286.93
  5. Step 5: Solve for x
    x = 5,772,286.93/2,717.90
  6. Step 6: Final answer
    x = 2,123.80

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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.