Home / 7,155.44-10,722.26-3,640.17

Finding the Fourth Proportional to 7,155.44, 10,722.26 and 3,640.17

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Solution

The fourth proportional to 7,155.44, 10,722.26 and 3,640.17 is: 5,454.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,155.44 : 10,722.26 = 3,640.17 : x
  2. Step 2: Convert to fraction form
    7,155.44/10,722.26 = 3,640.17/x
  3. Step 3: Cross multiply
    7,155.44x = 10,722.26 × 3,640.17
  4. Step 4: Simplify right side
    7,155.44x = 39,030,830.98
  5. Step 5: Solve for x
    x = 39,030,830.98/7,155.44
  6. Step 6: Final answer
    x = 5,454.71

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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.