Home / 3,727.96-5,139.93-2,842.36

Finding the Fourth Proportional to 3,727.96, 5,139.93 and 2,842.36

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Solution

The fourth proportional to 3,727.96, 5,139.93 and 2,842.36 is: 3,918.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,727.96 : 5,139.93 = 2,842.36 : x
  2. Step 2: Convert to fraction form
    3,727.96/5,139.93 = 2,842.36/x
  3. Step 3: Cross multiply
    3,727.96x = 5,139.93 × 2,842.36
  4. Step 4: Simplify right side
    3,727.96x = 14,609,531.43
  5. Step 5: Solve for x
    x = 14,609,531.43/3,727.96
  6. Step 6: Final answer
    x = 3,918.91

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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.