Home / 2,839.95-3,919.25-1,581.06

Finding the Fourth Proportional to 2,839.95, 3,919.25 and 1,581.06

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Solution

The fourth proportional to 2,839.95, 3,919.25 and 1,581.06 is: 2,181.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.95 : 3,919.25 = 1,581.06 : x
  2. Step 2: Convert to fraction form
    2,839.95/3,919.25 = 1,581.06/x
  3. Step 3: Cross multiply
    2,839.95x = 3,919.25 × 1,581.06
  4. Step 4: Simplify right side
    2,839.95x = 6,196,561.50
  5. Step 5: Solve for x
    x = 6,196,561.50/2,839.95
  6. Step 6: Final answer
    x = 2,181.93

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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.