Home / 5,719.79-8,579.69-3,221.17

Finding the Fourth Proportional to 5,719.79, 8,579.69 and 3,221.17

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Solution

The fourth proportional to 5,719.79, 8,579.69 and 3,221.17 is: 4,831.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,719.79 : 8,579.69 = 3,221.17 : x
  2. Step 2: Convert to fraction form
    5,719.79/8,579.69 = 3,221.17/x
  3. Step 3: Cross multiply
    5,719.79x = 8,579.69 × 3,221.17
  4. Step 4: Simplify right side
    5,719.79x = 27,636,640.04
  5. Step 5: Solve for x
    x = 27,636,640.04/5,719.79
  6. Step 6: Final answer
    x = 4,831.76

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.