Home / 3,809.64-5,257.77-2,318.07

Finding the Fourth Proportional to 3,809.64, 5,257.77 and 2,318.07

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Solution

The fourth proportional to 3,809.64, 5,257.77 and 2,318.07 is: 3,199.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,809.64 : 5,257.77 = 2,318.07 : x
  2. Step 2: Convert to fraction form
    3,809.64/5,257.77 = 2,318.07/x
  3. Step 3: Cross multiply
    3,809.64x = 5,257.77 × 2,318.07
  4. Step 4: Simplify right side
    3,809.64x = 12,187,878.90
  5. Step 5: Solve for x
    x = 12,187,878.90/3,809.64
  6. Step 6: Final answer
    x = 3,199.22

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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.