Home / 2,274.48-3,138.72-1,330.83

Finding the Fourth Proportional to 2,274.48, 3,138.72 and 1,330.83

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Solution

The fourth proportional to 2,274.48, 3,138.72 and 1,330.83 is: 1,836.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.48 : 3,138.72 = 1,330.83 : x
  2. Step 2: Convert to fraction form
    2,274.48/3,138.72 = 1,330.83/x
  3. Step 3: Cross multiply
    2,274.48x = 3,138.72 × 1,330.83
  4. Step 4: Simplify right side
    2,274.48x = 4,177,102.74
  5. Step 5: Solve for x
    x = 4,177,102.74/2,274.48
  6. Step 6: Final answer
    x = 1,836.51

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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.