Home / 2,964.30-4,090.71-1,638.09

Finding the Fourth Proportional to 2,964.30, 4,090.71 and 1,638.09

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Solution

The fourth proportional to 2,964.30, 4,090.71 and 1,638.09 is: 2,260.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,964.30 : 4,090.71 = 1,638.09 : x
  2. Step 2: Convert to fraction form
    2,964.30/4,090.71 = 1,638.09/x
  3. Step 3: Cross multiply
    2,964.30x = 4,090.71 × 1,638.09
  4. Step 4: Simplify right side
    2,964.30x = 6,700,951.14
  5. Step 5: Solve for x
    x = 6,700,951.14/2,964.30
  6. Step 6: Final answer
    x = 2,260.55

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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.