Home / 4,160.72-6,242.22-2,078.21

Finding the Fourth Proportional to 4,160.72, 6,242.22 and 2,078.21

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Solution

The fourth proportional to 4,160.72, 6,242.22 and 2,078.21 is: 3,117.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,160.72 : 6,242.22 = 2,078.21 : x
  2. Step 2: Convert to fraction form
    4,160.72/6,242.22 = 2,078.21/x
  3. Step 3: Cross multiply
    4,160.72x = 6,242.22 × 2,078.21
  4. Step 4: Simplify right side
    4,160.72x = 12,972,644.03
  5. Step 5: Solve for x
    x = 12,972,644.03/4,160.72
  6. Step 6: Final answer
    x = 3,117.88

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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.