Home / 2,758.07-4,126.72-1,643.38

Finding the Fourth Proportional to 2,758.07, 4,126.72 and 1,643.38

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Solution

The fourth proportional to 2,758.07, 4,126.72 and 1,643.38 is: 2,458.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,758.07 : 4,126.72 = 1,643.38 : x
  2. Step 2: Convert to fraction form
    2,758.07/4,126.72 = 1,643.38/x
  3. Step 3: Cross multiply
    2,758.07x = 4,126.72 × 1,643.38
  4. Step 4: Simplify right side
    2,758.07x = 6,781,769.11
  5. Step 5: Solve for x
    x = 6,781,769.11/2,758.07
  6. Step 6: Final answer
    x = 2,458.88

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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.