Home / 5,640.03-7,782.23-3,249.57

Finding the Fourth Proportional to 5,640.03, 7,782.23 and 3,249.57

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Solution

The fourth proportional to 5,640.03, 7,782.23 and 3,249.57 is: 4,483.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,640.03 : 7,782.23 = 3,249.57 : x
  2. Step 2: Convert to fraction form
    5,640.03/7,782.23 = 3,249.57/x
  3. Step 3: Cross multiply
    5,640.03x = 7,782.23 × 3,249.57
  4. Step 4: Simplify right side
    5,640.03x = 25,288,884.89
  5. Step 5: Solve for x
    x = 25,288,884.89/5,640.03
  6. Step 6: Final answer
    x = 4,483.82

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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.