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Finding the Fourth Proportional to 6,640.76, 9,961.12 and 2,023.76

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Solution

The fourth proportional to 6,640.76, 9,961.12 and 2,023.76 is: 3,035.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,640.76 : 9,961.12 = 2,023.76 : x
  2. Step 2: Convert to fraction form
    6,640.76/9,961.12 = 2,023.76/x
  3. Step 3: Cross multiply
    6,640.76x = 9,961.12 × 2,023.76
  4. Step 4: Simplify right side
    6,640.76x = 20,158,916.21
  5. Step 5: Solve for x
    x = 20,158,916.21/6,640.76
  6. Step 6: Final answer
    x = 3,035.63

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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.