Home / 3,989.48-5,506.46-2,310.65

Finding the Fourth Proportional to 3,989.48, 5,506.46 and 2,310.65

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Solution

The fourth proportional to 3,989.48, 5,506.46 and 2,310.65 is: 3,189.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.48 : 5,506.46 = 2,310.65 : x
  2. Step 2: Convert to fraction form
    3,989.48/5,506.46 = 2,310.65/x
  3. Step 3: Cross multiply
    3,989.48x = 5,506.46 × 2,310.65
  4. Step 4: Simplify right side
    3,989.48x = 12,723,466.17
  5. Step 5: Solve for x
    x = 12,723,466.17/3,989.48
  6. Step 6: Final answer
    x = 3,189.25

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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.