Home / 2,379.26-3,283.53-1,331.40

Finding the Fourth Proportional to 2,379.26, 3,283.53 and 1,331.40

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Solution

The fourth proportional to 2,379.26, 3,283.53 and 1,331.40 is: 1,837.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.26 : 3,283.53 = 1,331.40 : x
  2. Step 2: Convert to fraction form
    2,379.26/3,283.53 = 1,331.40/x
  3. Step 3: Cross multiply
    2,379.26x = 3,283.53 × 1,331.40
  4. Step 4: Simplify right side
    2,379.26x = 4,371,691.84
  5. Step 5: Solve for x
    x = 4,371,691.84/2,379.26
  6. Step 6: Final answer
    x = 1,837.42

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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.