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Finding the Fourth Proportional to 4,959.21, 6,843.59 and 2,721.06

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Solution

The fourth proportional to 4,959.21, 6,843.59 and 2,721.06 is: 3,755.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,959.21 : 6,843.59 = 2,721.06 : x
  2. Step 2: Convert to fraction form
    4,959.21/6,843.59 = 2,721.06/x
  3. Step 3: Cross multiply
    4,959.21x = 6,843.59 × 2,721.06
  4. Step 4: Simplify right side
    4,959.21x = 18,621,805.40
  5. Step 5: Solve for x
    x = 18,621,805.40/4,959.21
  6. Step 6: Final answer
    x = 3,755.00

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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.