Home / 3,805.07-5,251.19-2,126.51

Finding the Fourth Proportional to 3,805.07, 5,251.19 and 2,126.51

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Solution

The fourth proportional to 3,805.07, 5,251.19 and 2,126.51 is: 2,934.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,805.07 : 5,251.19 = 2,126.51 : x
  2. Step 2: Convert to fraction form
    3,805.07/5,251.19 = 2,126.51/x
  3. Step 3: Cross multiply
    3,805.07x = 5,251.19 × 2,126.51
  4. Step 4: Simplify right side
    3,805.07x = 11,166,726.49
  5. Step 5: Solve for x
    x = 11,166,726.49/3,805.07
  6. Step 6: Final answer
    x = 2,934.70

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1.5x scale

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.