Home / 1,935.12-2,672.67-1,274.92

Finding the Fourth Proportional to 1,935.12, 2,672.67 and 1,274.92

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Solution

The fourth proportional to 1,935.12, 2,672.67 and 1,274.92 is: 1,760.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,935.12 : 2,672.67 = 1,274.92 : x
  2. Step 2: Convert to fraction form
    1,935.12/2,672.67 = 1,274.92/x
  3. Step 3: Cross multiply
    1,935.12x = 2,672.67 × 1,274.92
  4. Step 4: Simplify right side
    1,935.12x = 3,407,440.44
  5. Step 5: Solve for x
    x = 3,407,440.44/1,935.12
  6. Step 6: Final answer
    x = 1,760.84

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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.