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Finding the Fourth Proportional to 3,968.93, 5,477.13 and 2,397.02

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Solution

The fourth proportional to 3,968.93, 5,477.13 and 2,397.02 is: 3,307.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,968.93 : 5,477.13 = 2,397.02 : x
  2. Step 2: Convert to fraction form
    3,968.93/5,477.13 = 2,397.02/x
  3. Step 3: Cross multiply
    3,968.93x = 5,477.13 × 2,397.02
  4. Step 4: Simplify right side
    3,968.93x = 13,128,790.15
  5. Step 5: Solve for x
    x = 13,128,790.15/3,968.93
  6. Step 6: Final answer
    x = 3,307.89

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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.