Home / 2,997.18-4,136.10-1,670.81

Finding the Fourth Proportional to 2,997.18, 4,136.10 and 1,670.81

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Solution

The fourth proportional to 2,997.18, 4,136.10 and 1,670.81 is: 2,305.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.18 : 4,136.10 = 1,670.81 : x
  2. Step 2: Convert to fraction form
    2,997.18/4,136.10 = 1,670.81/x
  3. Step 3: Cross multiply
    2,997.18x = 4,136.10 × 1,670.81
  4. Step 4: Simplify right side
    2,997.18x = 6,910,616.56
  5. Step 5: Solve for x
    x = 6,910,616.56/2,997.18
  6. Step 6: Final answer
    x = 2,305.71

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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.