Home / 5,325.40-7,972.26-3,944.80

Finding the Fourth Proportional to 5,325.40, 7,972.26 and 3,944.80

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Solution

The fourth proportional to 5,325.40, 7,972.26 and 3,944.80 is: 5,905.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,325.40 : 7,972.26 = 3,944.80 : x
  2. Step 2: Convert to fraction form
    5,325.40/7,972.26 = 3,944.80/x
  3. Step 3: Cross multiply
    5,325.40x = 7,972.26 × 3,944.80
  4. Step 4: Simplify right side
    5,325.40x = 31,448,971.25
  5. Step 5: Solve for x
    x = 31,448,971.25/5,325.40
  6. Step 6: Final answer
    x = 5,905.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.