Home / 2,917.28-4,377.74-1,185.90

Finding the Fourth Proportional to 2,917.28, 4,377.74 and 1,185.90

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Solution

The fourth proportional to 2,917.28, 4,377.74 and 1,185.90 is: 1,779.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.28 : 4,377.74 = 1,185.90 : x
  2. Step 2: Convert to fraction form
    2,917.28/4,377.74 = 1,185.90/x
  3. Step 3: Cross multiply
    2,917.28x = 4,377.74 × 1,185.90
  4. Step 4: Simplify right side
    2,917.28x = 5,191,555.94
  5. Step 5: Solve for x
    x = 5,191,555.94/2,917.28
  6. Step 6: Final answer
    x = 1,779.59

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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.