Home / 3,127.68-4,690.85-935.82

Finding the Fourth Proportional to 3,127.68, 4,690.85 and 935.82

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Solution

The fourth proportional to 3,127.68, 4,690.85 and 935.82 is: 1,403.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,127.68 : 4,690.85 = 935.82 : x
  2. Step 2: Convert to fraction form
    3,127.68/4,690.85 = 935.82/x
  3. Step 3: Cross multiply
    3,127.68x = 4,690.85 × 935.82
  4. Step 4: Simplify right side
    3,127.68x = 4,389,786.57
  5. Step 5: Solve for x
    x = 4,389,786.57/3,127.68
  6. Step 6: Final answer
    x = 1,403.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.