Home / 1,779.22-2,456.19-1,249.23

Finding the Fourth Proportional to 1,779.22, 2,456.19 and 1,249.23

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Solution

The fourth proportional to 1,779.22, 2,456.19 and 1,249.23 is: 1,724.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.22 : 2,456.19 = 1,249.23 : x
  2. Step 2: Convert to fraction form
    1,779.22/2,456.19 = 1,249.23/x
  3. Step 3: Cross multiply
    1,779.22x = 2,456.19 × 1,249.23
  4. Step 4: Simplify right side
    1,779.22x = 3,068,346.23
  5. Step 5: Solve for x
    x = 3,068,346.23/1,779.22
  6. Step 6: Final answer
    x = 1,724.55

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Find fourth proportional to 1,780.22, 2,457.57 and 1,250.23
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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.