Home / 5,645.11-7,785.98-4,945.27

Finding the Fourth Proportional to 5,645.11, 7,785.98 and 4,945.27

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Solution

The fourth proportional to 5,645.11, 7,785.98 and 4,945.27 is: 6,820.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.11 : 7,785.98 = 4,945.27 : x
  2. Step 2: Convert to fraction form
    5,645.11/7,785.98 = 4,945.27/x
  3. Step 3: Cross multiply
    5,645.11x = 7,785.98 × 4,945.27
  4. Step 4: Simplify right side
    5,645.11x = 38,503,748.59
  5. Step 5: Solve for x
    x = 38,503,748.59/5,645.11
  6. Step 6: Final answer
    x = 6,820.73

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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.