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Finding the Fourth Proportional to 4,358.63, 6,561.65 and 3,971.12

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Solution

The fourth proportional to 4,358.63, 6,561.65 and 3,971.12 is: 5,978.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,358.63 : 6,561.65 = 3,971.12 : x
  2. Step 2: Convert to fraction form
    4,358.63/6,561.65 = 3,971.12/x
  3. Step 3: Cross multiply
    4,358.63x = 6,561.65 × 3,971.12
  4. Step 4: Simplify right side
    4,358.63x = 26,057,046.88
  5. Step 5: Solve for x
    x = 26,057,046.88/4,358.63
  6. Step 6: Final answer
    x = 5,978.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.