Home / 6,624.43-9,141.28-3,640.21

Finding the Fourth Proportional to 6,624.43, 9,141.28 and 3,640.21

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Solution

The fourth proportional to 6,624.43, 9,141.28 and 3,640.21 is: 5,023.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,624.43 : 9,141.28 = 3,640.21 : x
  2. Step 2: Convert to fraction form
    6,624.43/9,141.28 = 3,640.21/x
  3. Step 3: Cross multiply
    6,624.43x = 9,141.28 × 3,640.21
  4. Step 4: Simplify right side
    6,624.43x = 33,276,146.92
  5. Step 5: Solve for x
    x = 33,276,146.92/6,624.43
  6. Step 6: Final answer
    x = 5,023.25

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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.