Home / 1,977.25-2,965.92-1,515.86

Finding the Fourth Proportional to 1,977.25, 2,965.92 and 1,515.86

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Solution

The fourth proportional to 1,977.25, 2,965.92 and 1,515.86 is: 2,273.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.25 : 2,965.92 = 1,515.86 : x
  2. Step 2: Convert to fraction form
    1,977.25/2,965.92 = 1,515.86/x
  3. Step 3: Cross multiply
    1,977.25x = 2,965.92 × 1,515.86
  4. Step 4: Simplify right side
    1,977.25x = 4,495,919.49
  5. Step 5: Solve for x
    x = 4,495,919.49/1,977.25
  6. Step 6: Final answer
    x = 2,273.82

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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.