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Finding the Fourth Proportional to 6,372, 8,792.19 and 3,718.76

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Solution

The fourth proportional to 6,372, 8,792.19 and 3,718.76 is: 5,131.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,372 : 8,792.19 = 3,718.76 : x
  2. Step 2: Convert to fraction form
    6,372/8,792.19 = 3,718.76/x
  3. Step 3: Cross multiply
    6,372x = 8,792.19 × 3,718.76
  4. Step 4: Simplify right side
    6,372x = 32,696,000.52
  5. Step 5: Solve for x
    x = 32,696,000.52/6,372
  6. Step 6: Final answer
    x = 5,131.20

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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.