Home / 3,149.04-4,345.20-1,822.88

Finding the Fourth Proportional to 3,149.04, 4,345.20 and 1,822.88

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Solution

The fourth proportional to 3,149.04, 4,345.20 and 1,822.88 is: 2,515.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.04 : 4,345.20 = 1,822.88 : x
  2. Step 2: Convert to fraction form
    3,149.04/4,345.20 = 1,822.88/x
  3. Step 3: Cross multiply
    3,149.04x = 4,345.20 × 1,822.88
  4. Step 4: Simplify right side
    3,149.04x = 7,920,756.45
  5. Step 5: Solve for x
    x = 7,920,756.45/3,149.04
  6. Step 6: Final answer
    x = 2,515.29

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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.