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Finding the Fourth Proportional to 5,391.63, 7,440.48 and 3,001.68

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Solution

The fourth proportional to 5,391.63, 7,440.48 and 3,001.68 is: 4,142.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.63 : 7,440.48 = 3,001.68 : x
  2. Step 2: Convert to fraction form
    5,391.63/7,440.48 = 3,001.68/x
  3. Step 3: Cross multiply
    5,391.63x = 7,440.48 × 3,001.68
  4. Step 4: Simplify right side
    5,391.63x = 22,333,940.01
  5. Step 5: Solve for x
    x = 22,333,940.01/5,391.63
  6. Step 6: Final answer
    x = 4,142.34

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1.5x scale

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.