Home / 2,642.96-3,965.40-1,344.56

Finding the Fourth Proportional to 2,642.96, 3,965.40 and 1,344.56

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Solution

The fourth proportional to 2,642.96, 3,965.40 and 1,344.56 is: 2,017.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.96 : 3,965.40 = 1,344.56 : x
  2. Step 2: Convert to fraction form
    2,642.96/3,965.40 = 1,344.56/x
  3. Step 3: Cross multiply
    2,642.96x = 3,965.40 × 1,344.56
  4. Step 4: Simplify right side
    2,642.96x = 5,331,718.22
  5. Step 5: Solve for x
    x = 5,331,718.22/2,642.96
  6. Step 6: Final answer
    x = 2,017.33

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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.