Home / 2,399.13-3,310.23-1,351.19

Finding the Fourth Proportional to 2,399.13, 3,310.23 and 1,351.19

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Solution

The fourth proportional to 2,399.13, 3,310.23 and 1,351.19 is: 1,864.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,399.13 : 3,310.23 = 1,351.19 : x
  2. Step 2: Convert to fraction form
    2,399.13/3,310.23 = 1,351.19/x
  3. Step 3: Cross multiply
    2,399.13x = 3,310.23 × 1,351.19
  4. Step 4: Simplify right side
    2,399.13x = 4,472,749.67
  5. Step 5: Solve for x
    x = 4,472,749.67/2,399.13
  6. Step 6: Final answer
    x = 1,864.32

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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.