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Finding the Fourth Proportional to 6,638.92, 9,962.91 and 4,300

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Solution

The fourth proportional to 6,638.92, 9,962.91 and 4,300 is: 6,452.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.92 : 9,962.91 = 4,300 : x
  2. Step 2: Convert to fraction form
    6,638.92/9,962.91 = 4,300/x
  3. Step 3: Cross multiply
    6,638.92x = 9,962.91 × 4,300
  4. Step 4: Simplify right side
    6,638.92x = 42,840,513
  5. Step 5: Solve for x
    x = 42,840,513/6,638.92
  6. Step 6: Final answer
    x = 6,452.93

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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.