Home / 4,079.64-6,118.68-1,739.20

Finding the Fourth Proportional to 4,079.64, 6,118.68 and 1,739.20

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Solution

The fourth proportional to 4,079.64, 6,118.68 and 1,739.20 is: 2,608.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,079.64 : 6,118.68 = 1,739.20 : x
  2. Step 2: Convert to fraction form
    4,079.64/6,118.68 = 1,739.20/x
  3. Step 3: Cross multiply
    4,079.64x = 6,118.68 × 1,739.20
  4. Step 4: Simplify right side
    4,079.64x = 10,641,608.26
  5. Step 5: Solve for x
    x = 10,641,608.26/4,079.64
  6. Step 6: Final answer
    x = 2,608.47

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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.