Home / 2,205.79-3,043.51-1,273.75

Finding the Fourth Proportional to 2,205.79, 3,043.51 and 1,273.75

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Solution

The fourth proportional to 2,205.79, 3,043.51 and 1,273.75 is: 1,757.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.79 : 3,043.51 = 1,273.75 : x
  2. Step 2: Convert to fraction form
    2,205.79/3,043.51 = 1,273.75/x
  3. Step 3: Cross multiply
    2,205.79x = 3,043.51 × 1,273.75
  4. Step 4: Simplify right side
    2,205.79x = 3,876,670.86
  5. Step 5: Solve for x
    x = 3,876,670.86/2,205.79
  6. Step 6: Final answer
    x = 1,757.50

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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.