Home / 2,178.72-3,265.38-1,252.44

Finding the Fourth Proportional to 2,178.72, 3,265.38 and 1,252.44

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Solution

The fourth proportional to 2,178.72, 3,265.38 and 1,252.44 is: 1,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,178.72 : 3,265.38 = 1,252.44 : x
  2. Step 2: Convert to fraction form
    2,178.72/3,265.38 = 1,252.44/x
  3. Step 3: Cross multiply
    2,178.72x = 3,265.38 × 1,252.44
  4. Step 4: Simplify right side
    2,178.72x = 4,089,692.53
  5. Step 5: Solve for x
    x = 4,089,692.53/2,178.72
  6. Step 6: Final answer
    x = 1,877.11

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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.