Home / 3,690.40-5,529.84-2,764.48

Finding the Fourth Proportional to 3,690.40, 5,529.84 and 2,764.48

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Solution

The fourth proportional to 3,690.40, 5,529.84 and 2,764.48 is: 4,142.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,690.40 : 5,529.84 = 2,764.48 : x
  2. Step 2: Convert to fraction form
    3,690.40/5,529.84 = 2,764.48/x
  3. Step 3: Cross multiply
    3,690.40x = 5,529.84 × 2,764.48
  4. Step 4: Simplify right side
    3,690.40x = 15,287,132.08
  5. Step 5: Solve for x
    x = 15,287,132.08/3,690.40
  6. Step 6: Final answer
    x = 4,142.41

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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.