Home / 3,885.15-5,361.44-2,206.89

Finding the Fourth Proportional to 3,885.15, 5,361.44 and 2,206.89

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Solution

The fourth proportional to 3,885.15, 5,361.44 and 2,206.89 is: 3,045.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.15 : 5,361.44 = 2,206.89 : x
  2. Step 2: Convert to fraction form
    3,885.15/5,361.44 = 2,206.89/x
  3. Step 3: Cross multiply
    3,885.15x = 5,361.44 × 2,206.89
  4. Step 4: Simplify right side
    3,885.15x = 11,832,097.29
  5. Step 5: Solve for x
    x = 11,832,097.29/3,885.15
  6. Step 6: Final answer
    x = 3,045.47

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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.