Home / 3,143.76-4,338.35-1,727.46

Finding the Fourth Proportional to 3,143.76, 4,338.35 and 1,727.46

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Solution

The fourth proportional to 3,143.76, 4,338.35 and 1,727.46 is: 2,383.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.76 : 4,338.35 = 1,727.46 : x
  2. Step 2: Convert to fraction form
    3,143.76/4,338.35 = 1,727.46/x
  3. Step 3: Cross multiply
    3,143.76x = 4,338.35 × 1,727.46
  4. Step 4: Simplify right side
    3,143.76x = 7,494,317.45
  5. Step 5: Solve for x
    x = 7,494,317.45/3,143.76
  6. Step 6: Final answer
    x = 2,383.87

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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.