Home / 2,273.24-3,137.16-1,278.68

Finding the Fourth Proportional to 2,273.24, 3,137.16 and 1,278.68

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Solution

The fourth proportional to 2,273.24, 3,137.16 and 1,278.68 is: 1,764.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,273.24 : 3,137.16 = 1,278.68 : x
  2. Step 2: Convert to fraction form
    2,273.24/3,137.16 = 1,278.68/x
  3. Step 3: Cross multiply
    2,273.24x = 3,137.16 × 1,278.68
  4. Step 4: Simplify right side
    2,273.24x = 4,011,423.75
  5. Step 5: Solve for x
    x = 4,011,423.75/2,273.24
  6. Step 6: Final answer
    x = 1,764.63

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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.