Home / 7,201.25-9,937.73-3,889.25

Finding the Fourth Proportional to 7,201.25, 9,937.73 and 3,889.25

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Solution

The fourth proportional to 7,201.25, 9,937.73 and 3,889.25 is: 5,367.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,201.25 : 9,937.73 = 3,889.25 : x
  2. Step 2: Convert to fraction form
    7,201.25/9,937.73 = 3,889.25/x
  3. Step 3: Cross multiply
    7,201.25x = 9,937.73 × 3,889.25
  4. Step 4: Simplify right side
    7,201.25x = 38,650,316.40
  5. Step 5: Solve for x
    x = 38,650,316.40/7,201.25
  6. Step 6: Final answer
    x = 5,367.17

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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.