Home / 3,898.13-5,379.23-2,325.65

Finding the Fourth Proportional to 3,898.13, 5,379.23 and 2,325.65

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Solution

The fourth proportional to 3,898.13, 5,379.23 and 2,325.65 is: 3,209.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.13 : 5,379.23 = 2,325.65 : x
  2. Step 2: Convert to fraction form
    3,898.13/5,379.23 = 2,325.65/x
  3. Step 3: Cross multiply
    3,898.13x = 5,379.23 × 2,325.65
  4. Step 4: Simplify right side
    3,898.13x = 12,510,194.62
  5. Step 5: Solve for x
    x = 12,510,194.62/3,898.13
  6. Step 6: Final answer
    x = 3,209.28

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1.5x scale

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.