Home / 3,321.14-4,583.05-2,143.40

Finding the Fourth Proportional to 3,321.14, 4,583.05 and 2,143.40

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Solution

The fourth proportional to 3,321.14, 4,583.05 and 2,143.40 is: 2,957.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.14 : 4,583.05 = 2,143.40 : x
  2. Step 2: Convert to fraction form
    3,321.14/4,583.05 = 2,143.40/x
  3. Step 3: Cross multiply
    3,321.14x = 4,583.05 × 2,143.40
  4. Step 4: Simplify right side
    3,321.14x = 9,823,281.10
  5. Step 5: Solve for x
    x = 9,823,281.10/3,321.14
  6. Step 6: Final answer
    x = 2,957.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.