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Finding the Fourth Proportional to 4,239, 5,851.08 and 2,980.44

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Solution

The fourth proportional to 4,239, 5,851.08 and 2,980.44 is: 4,113.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,239 : 5,851.08 = 2,980.44 : x
  2. Step 2: Convert to fraction form
    4,239/5,851.08 = 2,980.44/x
  3. Step 3: Cross multiply
    4,239x = 5,851.08 × 2,980.44
  4. Step 4: Simplify right side
    4,239x = 17,438,792.88
  5. Step 5: Solve for x
    x = 17,438,792.88/4,239
  6. Step 6: Final answer
    x = 4,113.89

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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.