Home / 2,720.65-4,081.31-941.55

Finding the Fourth Proportional to 2,720.65, 4,081.31 and 941.55

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Solution

The fourth proportional to 2,720.65, 4,081.31 and 941.55 is: 1,412.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.65 : 4,081.31 = 941.55 : x
  2. Step 2: Convert to fraction form
    2,720.65/4,081.31 = 941.55/x
  3. Step 3: Cross multiply
    2,720.65x = 4,081.31 × 941.55
  4. Step 4: Simplify right side
    2,720.65x = 3,842,755.08
  5. Step 5: Solve for x
    x = 3,842,755.08/2,720.65
  6. Step 6: Final answer
    x = 1,412.44

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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.