Home / 2,278.52-3,143.09-1,334.46

Finding the Fourth Proportional to 2,278.52, 3,143.09 and 1,334.46

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Solution

The fourth proportional to 2,278.52, 3,143.09 and 1,334.46 is: 1,840.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,278.52 : 3,143.09 = 1,334.46 : x
  2. Step 2: Convert to fraction form
    2,278.52/3,143.09 = 1,334.46/x
  3. Step 3: Cross multiply
    2,278.52x = 3,143.09 × 1,334.46
  4. Step 4: Simplify right side
    2,278.52x = 4,194,321.21
  5. Step 5: Solve for x
    x = 4,194,321.21/2,278.52
  6. Step 6: Final answer
    x = 1,840.81

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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.