Home / 2,780.88-3,837.61-1,732.94

Finding the Fourth Proportional to 2,780.88, 3,837.61 and 1,732.94

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Solution

The fourth proportional to 2,780.88, 3,837.61 and 1,732.94 is: 2,391.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.88 : 3,837.61 = 1,732.94 : x
  2. Step 2: Convert to fraction form
    2,780.88/3,837.61 = 1,732.94/x
  3. Step 3: Cross multiply
    2,780.88x = 3,837.61 × 1,732.94
  4. Step 4: Simplify right side
    2,780.88x = 6,650,347.87
  5. Step 5: Solve for x
    x = 6,650,347.87/2,780.88
  6. Step 6: Final answer
    x = 2,391.45

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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.