Home / 2,997.35-4,136.24-1,878.89

Finding the Fourth Proportional to 2,997.35, 4,136.24 and 1,878.89

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Solution

The fourth proportional to 2,997.35, 4,136.24 and 1,878.89 is: 2,592.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,997.35 : 4,136.24 = 1,878.89 : x
  2. Step 2: Convert to fraction form
    2,997.35/4,136.24 = 1,878.89/x
  3. Step 3: Cross multiply
    2,997.35x = 4,136.24 × 1,878.89
  4. Step 4: Simplify right side
    2,997.35x = 7,771,539.97
  5. Step 5: Solve for x
    x = 7,771,539.97/2,997.35
  6. Step 6: Final answer
    x = 2,592.80

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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.