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Finding the Fourth Proportional to 6,411.23, 8,845.12 and 3,757.67

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Solution

The fourth proportional to 6,411.23, 8,845.12 and 3,757.67 is: 5,184.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,411.23 : 8,845.12 = 3,757.67 : x
  2. Step 2: Convert to fraction form
    6,411.23/8,845.12 = 3,757.67/x
  3. Step 3: Cross multiply
    6,411.23x = 8,845.12 × 3,757.67
  4. Step 4: Simplify right side
    6,411.23x = 33,237,042.07
  5. Step 5: Solve for x
    x = 33,237,042.07/6,411.23
  6. Step 6: Final answer
    x = 5,184.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.