Home / 3,727.96-5,145.07-2,405.51

Finding the Fourth Proportional to 3,727.96, 5,145.07 and 2,405.51

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Solution

The fourth proportional to 3,727.96, 5,145.07 and 2,405.51 is: 3,319.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.96 : 5,145.07 = 2,405.51 : x
  2. Step 2: Convert to fraction form
    3,727.96/5,145.07 = 2,405.51/x
  3. Step 3: Cross multiply
    3,727.96x = 5,145.07 × 2,405.51
  4. Step 4: Simplify right side
    3,727.96x = 12,376,517.34
  5. Step 5: Solve for x
    x = 12,376,517.34/3,727.96
  6. Step 6: Final answer
    x = 3,319.92

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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.