Home / 3,901.20-5,383.65-2,408.76

Finding the Fourth Proportional to 3,901.20, 5,383.65 and 2,408.76

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Solution

The fourth proportional to 3,901.20, 5,383.65 and 2,408.76 is: 3,324.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,901.20 : 5,383.65 = 2,408.76 : x
  2. Step 2: Convert to fraction form
    3,901.20/5,383.65 = 2,408.76/x
  3. Step 3: Cross multiply
    3,901.20x = 5,383.65 × 2,408.76
  4. Step 4: Simplify right side
    3,901.20x = 12,967,920.77
  5. Step 5: Solve for x
    x = 12,967,920.77/3,901.20
  6. Step 6: Final answer
    x = 3,324.09

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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.