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Finding the Fourth Proportional to 5,721.04, 7,892.04 and 4,321.36

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Solution

The fourth proportional to 5,721.04, 7,892.04 and 4,321.36 is: 5,961.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.04 : 7,892.04 = 4,321.36 : x
  2. Step 2: Convert to fraction form
    5,721.04/7,892.04 = 4,321.36/x
  3. Step 3: Cross multiply
    5,721.04x = 7,892.04 × 4,321.36
  4. Step 4: Simplify right side
    5,721.04x = 34,104,345.97
  5. Step 5: Solve for x
    x = 34,104,345.97/5,721.04
  6. Step 6: Final answer
    x = 5,961.21

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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.