Home / 2,309.56-3,187.19-1,261.62

Finding the Fourth Proportional to 2,309.56, 3,187.19 and 1,261.62

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Solution

The fourth proportional to 2,309.56, 3,187.19 and 1,261.62 is: 1,741.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,309.56 : 3,187.19 = 1,261.62 : x
  2. Step 2: Convert to fraction form
    2,309.56/3,187.19 = 1,261.62/x
  3. Step 3: Cross multiply
    2,309.56x = 3,187.19 × 1,261.62
  4. Step 4: Simplify right side
    2,309.56x = 4,021,025.80
  5. Step 5: Solve for x
    x = 4,021,025.80/2,309.56
  6. Step 6: Final answer
    x = 1,741.04

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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.