Home / 3,660.77-5,486.45-1,905.53

Finding the Fourth Proportional to 3,660.77, 5,486.45 and 1,905.53

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Solution

The fourth proportional to 3,660.77, 5,486.45 and 1,905.53 is: 2,855.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.77 : 5,486.45 = 1,905.53 : x
  2. Step 2: Convert to fraction form
    3,660.77/5,486.45 = 1,905.53/x
  3. Step 3: Cross multiply
    3,660.77x = 5,486.45 × 1,905.53
  4. Step 4: Simplify right side
    3,660.77x = 10,454,595.07
  5. Step 5: Solve for x
    x = 10,454,595.07/3,660.77
  6. Step 6: Final answer
    x = 2,855.85

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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.