Home / 2,717.62-3,750.36-1,538.80

Finding the Fourth Proportional to 2,717.62, 3,750.36 and 1,538.80

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Solution

The fourth proportional to 2,717.62, 3,750.36 and 1,538.80 is: 2,123.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,717.62 : 3,750.36 = 1,538.80 : x
  2. Step 2: Convert to fraction form
    2,717.62/3,750.36 = 1,538.80/x
  3. Step 3: Cross multiply
    2,717.62x = 3,750.36 × 1,538.80
  4. Step 4: Simplify right side
    2,717.62x = 5,771,053.97
  5. Step 5: Solve for x
    x = 5,771,053.97/2,717.62
  6. Step 6: Final answer
    x = 2,123.57

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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.