Home / 6,624.38-9,141.48-3,640.20

Finding the Fourth Proportional to 6,624.38, 9,141.48 and 3,640.20

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Solution

The fourth proportional to 6,624.38, 9,141.48 and 3,640.20 is: 5,023.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.38 : 9,141.48 = 3,640.20 : x
  2. Step 2: Convert to fraction form
    6,624.38/9,141.48 = 3,640.20/x
  3. Step 3: Cross multiply
    6,624.38x = 9,141.48 × 3,640.20
  4. Step 4: Simplify right side
    6,624.38x = 33,276,815.50
  5. Step 5: Solve for x
    x = 33,276,815.50/6,624.38
  6. Step 6: Final answer
    x = 5,023.39

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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.