Home / 2,890.04-3,988.09-1,631.02

Finding the Fourth Proportional to 2,890.04, 3,988.09 and 1,631.02

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Solution

The fourth proportional to 2,890.04, 3,988.09 and 1,631.02 is: 2,250.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890.04 : 3,988.09 = 1,631.02 : x
  2. Step 2: Convert to fraction form
    2,890.04/3,988.09 = 1,631.02/x
  3. Step 3: Cross multiply
    2,890.04x = 3,988.09 × 1,631.02
  4. Step 4: Simplify right side
    2,890.04x = 6,504,654.55
  5. Step 5: Solve for x
    x = 6,504,654.55/2,890.04
  6. Step 6: Final answer
    x = 2,250.71

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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.