Home / 1,642.26-2,449.53-1,379.19

Finding the Fourth Proportional to 1,642.26, 2,449.53 and 1,379.19

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Solution

The fourth proportional to 1,642.26, 2,449.53 and 1,379.19 is: 2,057.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.26 : 2,449.53 = 1,379.19 : x
  2. Step 2: Convert to fraction form
    1,642.26/2,449.53 = 1,379.19/x
  3. Step 3: Cross multiply
    1,642.26x = 2,449.53 × 1,379.19
  4. Step 4: Simplify right side
    1,642.26x = 3,378,367.28
  5. Step 5: Solve for x
    x = 3,378,367.28/1,642.26
  6. Step 6: Final answer
    x = 2,057.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.