Home / 4,845.78-6,687.16-2,721.02

Finding the Fourth Proportional to 4,845.78, 6,687.16 and 2,721.02

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Solution

The fourth proportional to 4,845.78, 6,687.16 and 2,721.02 is: 3,754.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,845.78 : 6,687.16 = 2,721.02 : x
  2. Step 2: Convert to fraction form
    4,845.78/6,687.16 = 2,721.02/x
  3. Step 3: Cross multiply
    4,845.78x = 6,687.16 × 2,721.02
  4. Step 4: Simplify right side
    4,845.78x = 18,195,855.86
  5. Step 5: Solve for x
    x = 18,195,855.86/4,845.78
  6. Step 6: Final answer
    x = 3,754.99

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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.