Home / 2,519.38-3,777.90-875.44

Finding the Fourth Proportional to 2,519.38, 3,777.90 and 875.44

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Solution

The fourth proportional to 2,519.38, 3,777.90 and 875.44 is: 1,312.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,519.38 : 3,777.90 = 875.44 : x
  2. Step 2: Convert to fraction form
    2,519.38/3,777.90 = 875.44/x
  3. Step 3: Cross multiply
    2,519.38x = 3,777.90 × 875.44
  4. Step 4: Simplify right side
    2,519.38x = 3,307,324.78
  5. Step 5: Solve for x
    x = 3,307,324.78/2,519.38
  6. Step 6: Final answer
    x = 1,312.75

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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.