Home / 2,379.15-3,283.23-1,331.21

Finding the Fourth Proportional to 2,379.15, 3,283.23 and 1,331.21

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Solution

The fourth proportional to 2,379.15, 3,283.23 and 1,331.21 is: 1,837.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,379.15 : 3,283.23 = 1,331.21 : x
  2. Step 2: Convert to fraction form
    2,379.15/3,283.23 = 1,331.21/x
  3. Step 3: Cross multiply
    2,379.15x = 3,283.23 × 1,331.21
  4. Step 4: Simplify right side
    2,379.15x = 4,370,668.61
  5. Step 5: Solve for x
    x = 4,370,668.61/2,379.15
  6. Step 6: Final answer
    x = 1,837.07

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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.