Home / 2,308.20-3,462.30-1,384.80

Finding the Fourth Proportional to 2,308.20, 3,462.30 and 1,384.80

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Solution

The fourth proportional to 2,308.20, 3,462.30 and 1,384.80 is: 2,077.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.20 : 3,462.30 = 1,384.80 : x
  2. Step 2: Convert to fraction form
    2,308.20/3,462.30 = 1,384.80/x
  3. Step 3: Cross multiply
    2,308.20x = 3,462.30 × 1,384.80
  4. Step 4: Simplify right side
    2,308.20x = 4,794,593.04
  5. Step 5: Solve for x
    x = 4,794,593.04/2,308.20
  6. Step 6: Final answer
    x = 2,077.20

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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.