Home / 1,964.38-2,945.16-1,658.20

Finding the Fourth Proportional to 1,964.38, 2,945.16 and 1,658.20

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Solution

The fourth proportional to 1,964.38, 2,945.16 and 1,658.20 is: 2,486.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,964.38 : 2,945.16 = 1,658.20 : x
  2. Step 2: Convert to fraction form
    1,964.38/2,945.16 = 1,658.20/x
  3. Step 3: Cross multiply
    1,964.38x = 2,945.16 × 1,658.20
  4. Step 4: Simplify right side
    1,964.38x = 4,883,664.31
  5. Step 5: Solve for x
    x = 4,883,664.31/1,964.38
  6. Step 6: Final answer
    x = 2,486.11

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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.