Home / 2,839.96-3,919.11-1,580.98

Finding the Fourth Proportional to 2,839.96, 3,919.11 and 1,580.98

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Solution

The fourth proportional to 2,839.96, 3,919.11 and 1,580.98 is: 2,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.96 : 3,919.11 = 1,580.98 : x
  2. Step 2: Convert to fraction form
    2,839.96/3,919.11 = 1,580.98/x
  3. Step 3: Cross multiply
    2,839.96x = 3,919.11 × 1,580.98
  4. Step 4: Simplify right side
    2,839.96x = 6,196,034.53
  5. Step 5: Solve for x
    x = 6,196,034.53/2,839.96
  6. Step 6: Final answer
    x = 2,181.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.