Home / 3,686.93-5,529.83-1,221.76

Finding the Fourth Proportional to 3,686.93, 5,529.83 and 1,221.76

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Solution

The fourth proportional to 3,686.93, 5,529.83 and 1,221.76 is: 1,832.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.93 : 5,529.83 = 1,221.76 : x
  2. Step 2: Convert to fraction form
    3,686.93/5,529.83 = 1,221.76/x
  3. Step 3: Cross multiply
    3,686.93x = 5,529.83 × 1,221.76
  4. Step 4: Simplify right side
    3,686.93x = 6,756,125.10
  5. Step 5: Solve for x
    x = 6,756,125.10/3,686.93
  6. Step 6: Final answer
    x = 1,832.45

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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.