Home / 2,578.14-3,868.29-1,853.46

Finding the Fourth Proportional to 2,578.14, 3,868.29 and 1,853.46

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Solution

The fourth proportional to 2,578.14, 3,868.29 and 1,853.46 is: 2,780.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578.14 : 3,868.29 = 1,853.46 : x
  2. Step 2: Convert to fraction form
    2,578.14/3,868.29 = 1,853.46/x
  3. Step 3: Cross multiply
    2,578.14x = 3,868.29 × 1,853.46
  4. Step 4: Simplify right side
    2,578.14x = 7,169,720.78
  5. Step 5: Solve for x
    x = 7,169,720.78/2,578.14
  6. Step 6: Final answer
    x = 2,780.97

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1.5x scale

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.