Home / 2,163.18-2,985.06-1,279.06

Finding the Fourth Proportional to 2,163.18, 2,985.06 and 1,279.06

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Solution

The fourth proportional to 2,163.18, 2,985.06 and 1,279.06 is: 1,765.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.18 : 2,985.06 = 1,279.06 : x
  2. Step 2: Convert to fraction form
    2,163.18/2,985.06 = 1,279.06/x
  3. Step 3: Cross multiply
    2,163.18x = 2,985.06 × 1,279.06
  4. Step 4: Simplify right side
    2,163.18x = 3,818,070.84
  5. Step 5: Solve for x
    x = 3,818,070.84/2,163.18
  6. Step 6: Final answer
    x = 1,765.03

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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.