Home / 3,724.80-5,587.80-1,259.76

Finding the Fourth Proportional to 3,724.80, 5,587.80 and 1,259.76

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Solution

The fourth proportional to 3,724.80, 5,587.80 and 1,259.76 is: 1,889.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,724.80 : 5,587.80 = 1,259.76 : x
  2. Step 2: Convert to fraction form
    3,724.80/5,587.80 = 1,259.76/x
  3. Step 3: Cross multiply
    3,724.80x = 5,587.80 × 1,259.76
  4. Step 4: Simplify right side
    3,724.80x = 7,039,286.93
  5. Step 5: Solve for x
    x = 7,039,286.93/3,724.80
  6. Step 6: Final answer
    x = 1,889.84

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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.