Home / 2,442.29-3,369.53-1,379.90

Finding the Fourth Proportional to 2,442.29, 3,369.53 and 1,379.90

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Solution

The fourth proportional to 2,442.29, 3,369.53 and 1,379.90 is: 1,903.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,442.29 : 3,369.53 = 1,379.90 : x
  2. Step 2: Convert to fraction form
    2,442.29/3,369.53 = 1,379.90/x
  3. Step 3: Cross multiply
    2,442.29x = 3,369.53 × 1,379.90
  4. Step 4: Simplify right side
    2,442.29x = 4,649,626.32
  5. Step 5: Solve for x
    x = 4,649,626.32/2,442.29
  6. Step 6: Final answer
    x = 1,903.80

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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.