Home / 2,177.88-3,003.89-1,339.04

Finding the Fourth Proportional to 2,177.88, 3,003.89 and 1,339.04

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Solution

The fourth proportional to 2,177.88, 3,003.89 and 1,339.04 is: 1,846.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,177.88 : 3,003.89 = 1,339.04 : x
  2. Step 2: Convert to fraction form
    2,177.88/3,003.89 = 1,339.04/x
  3. Step 3: Cross multiply
    2,177.88x = 3,003.89 × 1,339.04
  4. Step 4: Simplify right side
    2,177.88x = 4,022,325.00
  5. Step 5: Solve for x
    x = 4,022,325.00/2,177.88
  6. Step 6: Final answer
    x = 1,846.90

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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.