Home / 3,723.54-5,139.99-2,398.92

Finding the Fourth Proportional to 3,723.54, 5,139.99 and 2,398.92

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Solution

The fourth proportional to 3,723.54, 5,139.99 and 2,398.92 is: 3,311.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.54 : 5,139.99 = 2,398.92 : x
  2. Step 2: Convert to fraction form
    3,723.54/5,139.99 = 2,398.92/x
  3. Step 3: Cross multiply
    3,723.54x = 5,139.99 × 2,398.92
  4. Step 4: Simplify right side
    3,723.54x = 12,330,424.81
  5. Step 5: Solve for x
    x = 12,330,424.81/3,723.54
  6. Step 6: Final answer
    x = 3,311.48

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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.