Home / 2,163.02-2,985.56-1,279.10

Finding the Fourth Proportional to 2,163.02, 2,985.56 and 1,279.10

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Solution

The fourth proportional to 2,163.02, 2,985.56 and 1,279.10 is: 1,765.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,163.02 : 2,985.56 = 1,279.10 : x
  2. Step 2: Convert to fraction form
    2,163.02/2,985.56 = 1,279.10/x
  3. Step 3: Cross multiply
    2,163.02x = 2,985.56 × 1,279.10
  4. Step 4: Simplify right side
    2,163.02x = 3,818,835.66
  5. Step 5: Solve for x
    x = 3,818,835.66/2,163.02
  6. Step 6: Final answer
    x = 1,765.52

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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.