Home / 6,624.30-9,141.75-3,640.21

Finding the Fourth Proportional to 6,624.30, 9,141.75 and 3,640.21

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Solution

The fourth proportional to 6,624.30, 9,141.75 and 3,640.21 is: 5,023.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.30 : 9,141.75 = 3,640.21 : x
  2. Step 2: Convert to fraction form
    6,624.30/9,141.75 = 3,640.21/x
  3. Step 3: Cross multiply
    6,624.30x = 9,141.75 × 3,640.21
  4. Step 4: Simplify right side
    6,624.30x = 33,277,866.91
  5. Step 5: Solve for x
    x = 33,277,866.91/6,624.30
  6. Step 6: Final answer
    x = 5,023.61

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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.