Home / 2,608.24-3,909.12-1,148.08

Finding the Fourth Proportional to 2,608.24, 3,909.12 and 1,148.08

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Solution

The fourth proportional to 2,608.24, 3,909.12 and 1,148.08 is: 1,720.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,608.24 : 3,909.12 = 1,148.08 : x
  2. Step 2: Convert to fraction form
    2,608.24/3,909.12 = 1,148.08/x
  3. Step 3: Cross multiply
    2,608.24x = 3,909.12 × 1,148.08
  4. Step 4: Simplify right side
    2,608.24x = 4,487,982.49
  5. Step 5: Solve for x
    x = 4,487,982.49/2,608.24
  6. Step 6: Final answer
    x = 1,720.69

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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.