Home / 2,886.25-4,329.38-1,241.78

Finding the Fourth Proportional to 2,886.25, 4,329.38 and 1,241.78

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Solution

The fourth proportional to 2,886.25, 4,329.38 and 1,241.78 is: 1,862.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886.25 : 4,329.38 = 1,241.78 : x
  2. Step 2: Convert to fraction form
    2,886.25/4,329.38 = 1,241.78/x
  3. Step 3: Cross multiply
    2,886.25x = 4,329.38 × 1,241.78
  4. Step 4: Simplify right side
    2,886.25x = 5,376,143.31
  5. Step 5: Solve for x
    x = 5,376,143.31/2,886.25
  6. Step 6: Final answer
    x = 1,862.67

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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.