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Finding the Fourth Proportional to 7,247.25, 10,001.21 and 3,935.25

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Solution

The fourth proportional to 7,247.25, 10,001.21 and 3,935.25 is: 5,430.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,247.25 : 10,001.21 = 3,935.25 : x
  2. Step 2: Convert to fraction form
    7,247.25/10,001.21 = 3,935.25/x
  3. Step 3: Cross multiply
    7,247.25x = 10,001.21 × 3,935.25
  4. Step 4: Simplify right side
    7,247.25x = 39,357,241.98
  5. Step 5: Solve for x
    x = 39,357,241.98/7,247.25
  6. Step 6: Final answer
    x = 5,430.65

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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.