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Finding the Fourth Proportional to 3,988.62, 5,968.35 and 2,345.94

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Solution

The fourth proportional to 3,988.62, 5,968.35 and 2,345.94 is: 3,510.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988.62 : 5,968.35 = 2,345.94 : x
  2. Step 2: Convert to fraction form
    3,988.62/5,968.35 = 2,345.94/x
  3. Step 3: Cross multiply
    3,988.62x = 5,968.35 × 2,345.94
  4. Step 4: Simplify right side
    3,988.62x = 14,001,391.00
  5. Step 5: Solve for x
    x = 14,001,391.00/3,988.62
  6. Step 6: Final answer
    x = 3,510.33

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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.