Home / 2,126.02-3,189.22-827.50

Finding the Fourth Proportional to 2,126.02, 3,189.22 and 827.50

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Solution

The fourth proportional to 2,126.02, 3,189.22 and 827.50 is: 1,241.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.02 : 3,189.22 = 827.50 : x
  2. Step 2: Convert to fraction form
    2,126.02/3,189.22 = 827.50/x
  3. Step 3: Cross multiply
    2,126.02x = 3,189.22 × 827.50
  4. Step 4: Simplify right side
    2,126.02x = 2,639,079.55
  5. Step 5: Solve for x
    x = 2,639,079.55/2,126.02
  6. Step 6: Final answer
    x = 1,241.32

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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.