Home / 3,936.02-5,431.73-2,257.53

Finding the Fourth Proportional to 3,936.02, 5,431.73 and 2,257.53

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Solution

The fourth proportional to 3,936.02, 5,431.73 and 2,257.53 is: 3,115.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,936.02 : 5,431.73 = 2,257.53 : x
  2. Step 2: Convert to fraction form
    3,936.02/5,431.73 = 2,257.53/x
  3. Step 3: Cross multiply
    3,936.02x = 5,431.73 × 2,257.53
  4. Step 4: Simplify right side
    3,936.02x = 12,262,254.98
  5. Step 5: Solve for x
    x = 12,262,254.98/3,936.02
  6. Step 6: Final answer
    x = 3,115.39

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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.