Home / 3,143.86-4,338.48-1,727.50

Finding the Fourth Proportional to 3,143.86, 4,338.48 and 1,727.50

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Solution

The fourth proportional to 3,143.86, 4,338.48 and 1,727.50 is: 2,383.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,143.86 : 4,338.48 = 1,727.50 : x
  2. Step 2: Convert to fraction form
    3,143.86/4,338.48 = 1,727.50/x
  3. Step 3: Cross multiply
    3,143.86x = 4,338.48 × 1,727.50
  4. Step 4: Simplify right side
    3,143.86x = 7,494,724.20
  5. Step 5: Solve for x
    x = 7,494,724.20/3,143.86
  6. Step 6: Final answer
    x = 2,383.92

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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.