Home / 7,081.47-9,772.44-3,938.26

Finding the Fourth Proportional to 7,081.47, 9,772.44 and 3,938.26

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Solution

The fourth proportional to 7,081.47, 9,772.44 and 3,938.26 is: 5,434.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,081.47 : 9,772.44 = 3,938.26 : x
  2. Step 2: Convert to fraction form
    7,081.47/9,772.44 = 3,938.26/x
  3. Step 3: Cross multiply
    7,081.47x = 9,772.44 × 3,938.26
  4. Step 4: Simplify right side
    7,081.47x = 38,486,409.55
  5. Step 5: Solve for x
    x = 38,486,409.55/7,081.47
  6. Step 6: Final answer
    x = 5,434.81

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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.