Home / 2,328.39-3,213.15-1,280.43

Finding the Fourth Proportional to 2,328.39, 3,213.15 and 1,280.43

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Solution

The fourth proportional to 2,328.39, 3,213.15 and 1,280.43 is: 1,766.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,328.39 : 3,213.15 = 1,280.43 : x
  2. Step 2: Convert to fraction form
    2,328.39/3,213.15 = 1,280.43/x
  3. Step 3: Cross multiply
    2,328.39x = 3,213.15 × 1,280.43
  4. Step 4: Simplify right side
    2,328.39x = 4,114,213.65
  5. Step 5: Solve for x
    x = 4,114,213.65/2,328.39
  6. Step 6: Final answer
    x = 1,766.98

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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.