Home / 2,839.65-3,918.77-1,580.73

Finding the Fourth Proportional to 2,839.65, 3,918.77 and 1,580.73

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Solution

The fourth proportional to 2,839.65, 3,918.77 and 1,580.73 is: 2,181.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,839.65 : 3,918.77 = 1,580.73 : x
  2. Step 2: Convert to fraction form
    2,839.65/3,918.77 = 1,580.73/x
  3. Step 3: Cross multiply
    2,839.65x = 3,918.77 × 1,580.73
  4. Step 4: Simplify right side
    2,839.65x = 6,194,517.30
  5. Step 5: Solve for x
    x = 6,194,517.30/2,839.65
  6. Step 6: Final answer
    x = 2,181.44

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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.