Home / 2,163.78-2,985.96-1,232.22

Finding the Fourth Proportional to 2,163.78, 2,985.96 and 1,232.22

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Solution

The fourth proportional to 2,163.78, 2,985.96 and 1,232.22 is: 1,700.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.78 : 2,985.96 = 1,232.22 : x
  2. Step 2: Convert to fraction form
    2,163.78/2,985.96 = 1,232.22/x
  3. Step 3: Cross multiply
    2,163.78x = 2,985.96 × 1,232.22
  4. Step 4: Simplify right side
    2,163.78x = 3,679,359.63
  5. Step 5: Solve for x
    x = 3,679,359.63/2,163.78
  6. Step 6: Final answer
    x = 1,700.43

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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.