Home / 2,997.68-4,136.90-1,671.30

Finding the Fourth Proportional to 2,997.68, 4,136.90 and 1,671.30

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Solution

The fourth proportional to 2,997.68, 4,136.90 and 1,671.30 is: 2,306.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.68 : 4,136.90 = 1,671.30 : x
  2. Step 2: Convert to fraction form
    2,997.68/4,136.90 = 1,671.30/x
  3. Step 3: Cross multiply
    2,997.68x = 4,136.90 × 1,671.30
  4. Step 4: Simplify right side
    2,997.68x = 6,913,992.61
  5. Step 5: Solve for x
    x = 6,913,992.61/2,997.68
  6. Step 6: Final answer
    x = 2,306.45

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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.