Home / 2,329.61-3,214.85-1,281.65

Finding the Fourth Proportional to 2,329.61, 3,214.85 and 1,281.65

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Solution

The fourth proportional to 2,329.61, 3,214.85 and 1,281.65 is: 1,768.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,329.61 : 3,214.85 = 1,281.65 : x
  2. Step 2: Convert to fraction form
    2,329.61/3,214.85 = 1,281.65/x
  3. Step 3: Cross multiply
    2,329.61x = 3,214.85 × 1,281.65
  4. Step 4: Simplify right side
    2,329.61x = 4,120,290.02
  5. Step 5: Solve for x
    x = 4,120,290.02/2,329.61
  6. Step 6: Final answer
    x = 1,768.66

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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.