Home / 3,885.23-5,361.76-2,206.79

Finding the Fourth Proportional to 3,885.23, 5,361.76 and 2,206.79

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Solution

The fourth proportional to 3,885.23, 5,361.76 and 2,206.79 is: 3,045.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.23 : 5,361.76 = 2,206.79 : x
  2. Step 2: Convert to fraction form
    3,885.23/5,361.76 = 2,206.79/x
  3. Step 3: Cross multiply
    3,885.23x = 5,361.76 × 2,206.79
  4. Step 4: Simplify right side
    3,885.23x = 11,832,246.02
  5. Step 5: Solve for x
    x = 11,832,246.02/3,885.23
  6. Step 6: Final answer
    x = 3,045.45

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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.