Home / 3,885.31-5,361.54-2,206.63

Finding the Fourth Proportional to 3,885.31, 5,361.54 and 2,206.63

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Solution

The fourth proportional to 3,885.31, 5,361.54 and 2,206.63 is: 3,045.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,885.31 : 5,361.54 = 2,206.63 : x
  2. Step 2: Convert to fraction form
    3,885.31/5,361.54 = 2,206.63/x
  3. Step 3: Cross multiply
    3,885.31x = 5,361.54 × 2,206.63
  4. Step 4: Simplify right side
    3,885.31x = 11,830,935.01
  5. Step 5: Solve for x
    x = 11,830,935.01/3,885.31
  6. Step 6: Final answer
    x = 3,045.04

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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.