Home / 3,869.15-5,803.16-1,236.95

Finding the Fourth Proportional to 3,869.15, 5,803.16 and 1,236.95

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Solution

The fourth proportional to 3,869.15, 5,803.16 and 1,236.95 is: 1,855.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,869.15 : 5,803.16 = 1,236.95 : x
  2. Step 2: Convert to fraction form
    3,869.15/5,803.16 = 1,236.95/x
  3. Step 3: Cross multiply
    3,869.15x = 5,803.16 × 1,236.95
  4. Step 4: Simplify right side
    3,869.15x = 7,178,236.36
  5. Step 5: Solve for x
    x = 7,178,236.36/3,869.15
  6. Step 6: Final answer
    x = 1,855.25

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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.