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Finding the Fourth Proportional to 4,248, 6,372.72 and 1,325.72

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Solution

The fourth proportional to 4,248, 6,372.72 and 1,325.72 is: 1,988.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,248 : 6,372.72 = 1,325.72 : x
  2. Step 2: Convert to fraction form
    4,248/6,372.72 = 1,325.72/x
  3. Step 3: Cross multiply
    4,248x = 6,372.72 × 1,325.72
  4. Step 4: Simplify right side
    4,248x = 8,448,458.29
  5. Step 5: Solve for x
    x = 8,448,458.29/4,248
  6. Step 6: Final answer
    x = 1,988.81

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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.