Home / 2,408.27-3,320.20-1,912.55

Finding the Fourth Proportional to 2,408.27, 3,320.20 and 1,912.55

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Solution

The fourth proportional to 2,408.27, 3,320.20 and 1,912.55 is: 2,636.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,408.27 : 3,320.20 = 1,912.55 : x
  2. Step 2: Convert to fraction form
    2,408.27/3,320.20 = 1,912.55/x
  3. Step 3: Cross multiply
    2,408.27x = 3,320.20 × 1,912.55
  4. Step 4: Simplify right side
    2,408.27x = 6,350,048.51
  5. Step 5: Solve for x
    x = 6,350,048.51/2,408.27
  6. Step 6: Final answer
    x = 2,636.77

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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.