Home / 3,587.44-5,381.36-1,278.94

Finding the Fourth Proportional to 3,587.44, 5,381.36 and 1,278.94

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Solution

The fourth proportional to 3,587.44, 5,381.36 and 1,278.94 is: 1,918.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.44 : 5,381.36 = 1,278.94 : x
  2. Step 2: Convert to fraction form
    3,587.44/5,381.36 = 1,278.94/x
  3. Step 3: Cross multiply
    3,587.44x = 5,381.36 × 1,278.94
  4. Step 4: Simplify right side
    3,587.44x = 6,882,426.30
  5. Step 5: Solve for x
    x = 6,882,426.30/3,587.44
  6. Step 6: Final answer
    x = 1,918.48

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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.