Home / 7,202.06-9,938.85-3,890.06

Finding the Fourth Proportional to 7,202.06, 9,938.85 and 3,890.06

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Solution

The fourth proportional to 7,202.06, 9,938.85 and 3,890.06 is: 5,368.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,202.06 : 9,938.85 = 3,890.06 : x
  2. Step 2: Convert to fraction form
    7,202.06/9,938.85 = 3,890.06/x
  3. Step 3: Cross multiply
    7,202.06x = 9,938.85 × 3,890.06
  4. Step 4: Simplify right side
    7,202.06x = 38,662,747.68
  5. Step 5: Solve for x
    x = 38,662,747.68/7,202.06
  6. Step 6: Final answer
    x = 5,368.29

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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.