Home / 6,620.72-9,128.76-4,262.96

Finding the Fourth Proportional to 6,620.72, 9,128.76 and 4,262.96

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Solution

The fourth proportional to 6,620.72, 9,128.76 and 4,262.96 is: 5,877.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,620.72 : 9,128.76 = 4,262.96 : x
  2. Step 2: Convert to fraction form
    6,620.72/9,128.76 = 4,262.96/x
  3. Step 3: Cross multiply
    6,620.72x = 9,128.76 × 4,262.96
  4. Step 4: Simplify right side
    6,620.72x = 38,915,538.73
  5. Step 5: Solve for x
    x = 38,915,538.73/6,620.72
  6. Step 6: Final answer
    x = 5,877.84

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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.