Home / 2,997.87-4,136.94-1,671.57

Finding the Fourth Proportional to 2,997.87, 4,136.94 and 1,671.57

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Solution

The fourth proportional to 2,997.87, 4,136.94 and 1,671.57 is: 2,306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.87 : 4,136.94 = 1,671.57 : x
  2. Step 2: Convert to fraction form
    2,997.87/4,136.94 = 1,671.57/x
  3. Step 3: Cross multiply
    2,997.87x = 4,136.94 × 1,671.57
  4. Step 4: Simplify right side
    2,997.87x = 6,915,184.80
  5. Step 5: Solve for x
    x = 6,915,184.80/2,997.87
  6. Step 6: Final answer
    x = 2,306.70

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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.