Home / 3,808.20-5,710.50-1,211.16

Finding the Fourth Proportional to 3,808.20, 5,710.50 and 1,211.16

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Solution

The fourth proportional to 3,808.20, 5,710.50 and 1,211.16 is: 1,816.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,808.20 : 5,710.50 = 1,211.16 : x
  2. Step 2: Convert to fraction form
    3,808.20/5,710.50 = 1,211.16/x
  3. Step 3: Cross multiply
    3,808.20x = 5,710.50 × 1,211.16
  4. Step 4: Simplify right side
    3,808.20x = 6,916,329.18
  5. Step 5: Solve for x
    x = 6,916,329.18/3,808.20
  6. Step 6: Final answer
    x = 1,816.17

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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.