Home / 3,896.10-5,374.96-2,402.87

Finding the Fourth Proportional to 3,896.10, 5,374.96 and 2,402.87

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Solution

The fourth proportional to 3,896.10, 5,374.96 and 2,402.87 is: 3,314.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,896.10 : 5,374.96 = 2,402.87 : x
  2. Step 2: Convert to fraction form
    3,896.10/5,374.96 = 2,402.87/x
  3. Step 3: Cross multiply
    3,896.10x = 5,374.96 × 2,402.87
  4. Step 4: Simplify right side
    3,896.10x = 12,915,297.25
  5. Step 5: Solve for x
    x = 12,915,297.25/3,896.10
  6. Step 6: Final answer
    x = 3,314.93

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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.