Home / 2,137.34-3,207.22-839.72

Finding the Fourth Proportional to 2,137.34, 3,207.22 and 839.72

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Solution

The fourth proportional to 2,137.34, 3,207.22 and 839.72 is: 1,260.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,137.34 : 3,207.22 = 839.72 : x
  2. Step 2: Convert to fraction form
    2,137.34/3,207.22 = 839.72/x
  3. Step 3: Cross multiply
    2,137.34x = 3,207.22 × 839.72
  4. Step 4: Simplify right side
    2,137.34x = 2,693,157.02
  5. Step 5: Solve for x
    x = 2,693,157.02/2,137.34
  6. Step 6: Final answer
    x = 1,260.05

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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.