Home / 3,686.22-5,529.45-1,377.66

Finding the Fourth Proportional to 3,686.22, 5,529.45 and 1,377.66

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Solution

The fourth proportional to 3,686.22, 5,529.45 and 1,377.66 is: 2,066.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.22 : 5,529.45 = 1,377.66 : x
  2. Step 2: Convert to fraction form
    3,686.22/5,529.45 = 1,377.66/x
  3. Step 3: Cross multiply
    3,686.22x = 5,529.45 × 1,377.66
  4. Step 4: Simplify right side
    3,686.22x = 7,617,702.09
  5. Step 5: Solve for x
    x = 7,617,702.09/3,686.22
  6. Step 6: Final answer
    x = 2,066.53

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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.