Home / 3,881.70-5,355.99-2,310.30

Finding the Fourth Proportional to 3,881.70, 5,355.99 and 2,310.30

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Solution

The fourth proportional to 3,881.70, 5,355.99 and 2,310.30 is: 3,187.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,881.70 : 5,355.99 = 2,310.30 : x
  2. Step 2: Convert to fraction form
    3,881.70/5,355.99 = 2,310.30/x
  3. Step 3: Cross multiply
    3,881.70x = 5,355.99 × 2,310.30
  4. Step 4: Simplify right side
    3,881.70x = 12,373,943.70
  5. Step 5: Solve for x
    x = 12,373,943.70/3,881.70
  6. Step 6: Final answer
    x = 3,187.76

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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.