Home / 3,886.16-5,361.98-2,207.18

Finding the Fourth Proportional to 3,886.16, 5,361.98 and 2,207.18

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Solution

The fourth proportional to 3,886.16, 5,361.98 and 2,207.18 is: 3,045.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.16 : 5,361.98 = 2,207.18 : x
  2. Step 2: Convert to fraction form
    3,886.16/5,361.98 = 2,207.18/x
  3. Step 3: Cross multiply
    3,886.16x = 5,361.98 × 2,207.18
  4. Step 4: Simplify right side
    3,886.16x = 11,834,855.02
  5. Step 5: Solve for x
    x = 11,834,855.02/3,886.16
  6. Step 6: Final answer
    x = 3,045.39

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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.