Home / 3,723.84-5,587.20-1,991.52

Finding the Fourth Proportional to 3,723.84, 5,587.20 and 1,991.52

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Solution

The fourth proportional to 3,723.84, 5,587.20 and 1,991.52 is: 2,988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,723.84 : 5,587.20 = 1,991.52 : x
  2. Step 2: Convert to fraction form
    3,723.84/5,587.20 = 1,991.52/x
  3. Step 3: Cross multiply
    3,723.84x = 5,587.20 × 1,991.52
  4. Step 4: Simplify right side
    3,723.84x = 11,127,020.54
  5. Step 5: Solve for x
    x = 11,127,020.54/3,723.84
  6. Step 6: Final answer
    x = 2,988.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.