Home / 2,997.62-4,136.80-1,671.28

Finding the Fourth Proportional to 2,997.62, 4,136.80 and 1,671.28

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Solution

The fourth proportional to 2,997.62, 4,136.80 and 1,671.28 is: 2,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.62 : 4,136.80 = 1,671.28 : x
  2. Step 2: Convert to fraction form
    2,997.62/4,136.80 = 1,671.28/x
  3. Step 3: Cross multiply
    2,997.62x = 4,136.80 × 1,671.28
  4. Step 4: Simplify right side
    2,997.62x = 6,913,751.10
  5. Step 5: Solve for x
    x = 6,913,751.10/2,997.62
  6. Step 6: Final answer
    x = 2,306.41

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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.