Home / 3,803.28-5,705.52-1,205.64

Finding the Fourth Proportional to 3,803.28, 5,705.52 and 1,205.64

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Solution

The fourth proportional to 3,803.28, 5,705.52 and 1,205.64 is: 1,808.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,803.28 : 5,705.52 = 1,205.64 : x
  2. Step 2: Convert to fraction form
    3,803.28/5,705.52 = 1,205.64/x
  3. Step 3: Cross multiply
    3,803.28x = 5,705.52 × 1,205.64
  4. Step 4: Simplify right side
    3,803.28x = 6,878,803.13
  5. Step 5: Solve for x
    x = 6,878,803.13/3,803.28
  6. Step 6: Final answer
    x = 1,808.65

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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.