Home / 5,249.09-7,869.08-1,962.21

Finding the Fourth Proportional to 5,249.09, 7,869.08 and 1,962.21

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Solution

The fourth proportional to 5,249.09, 7,869.08 and 1,962.21 is: 2,941.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,249.09 : 7,869.08 = 1,962.21 : x
  2. Step 2: Convert to fraction form
    5,249.09/7,869.08 = 1,962.21/x
  3. Step 3: Cross multiply
    5,249.09x = 7,869.08 × 1,962.21
  4. Step 4: Simplify right side
    5,249.09x = 15,440,777.66
  5. Step 5: Solve for x
    x = 15,440,777.66/5,249.09
  6. Step 6: Final answer
    x = 2,941.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.