Home / 2,308.65-3,462.12-1,212.90

Finding the Fourth Proportional to 2,308.65, 3,462.12 and 1,212.90

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Solution

The fourth proportional to 2,308.65, 3,462.12 and 1,212.90 is: 1,818.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,308.65 : 3,462.12 = 1,212.90 : x
  2. Step 2: Convert to fraction form
    2,308.65/3,462.12 = 1,212.90/x
  3. Step 3: Cross multiply
    2,308.65x = 3,462.12 × 1,212.90
  4. Step 4: Simplify right side
    2,308.65x = 4,199,205.35
  5. Step 5: Solve for x
    x = 4,199,205.35/2,308.65
  6. Step 6: Final answer
    x = 1,818.90

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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.