Home / 3,800.65-5,240.77-2,471.89

Finding the Fourth Proportional to 3,800.65, 5,240.77 and 2,471.89

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Solution

The fourth proportional to 3,800.65, 5,240.77 and 2,471.89 is: 3,408.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,800.65 : 5,240.77 = 2,471.89 : x
  2. Step 2: Convert to fraction form
    3,800.65/5,240.77 = 2,471.89/x
  3. Step 3: Cross multiply
    3,800.65x = 5,240.77 × 2,471.89
  4. Step 4: Simplify right side
    3,800.65x = 12,954,606.96
  5. Step 5: Solve for x
    x = 12,954,606.96/3,800.65
  6. Step 6: Final answer
    x = 3,408.52

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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.