Home / 5,676.84-7,831.76-3,579.75

Finding the Fourth Proportional to 5,676.84, 7,831.76 and 3,579.75

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Solution

The fourth proportional to 5,676.84, 7,831.76 and 3,579.75 is: 4,938.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.84 : 7,831.76 = 3,579.75 : x
  2. Step 2: Convert to fraction form
    5,676.84/7,831.76 = 3,579.75/x
  3. Step 3: Cross multiply
    5,676.84x = 7,831.76 × 3,579.75
  4. Step 4: Simplify right side
    5,676.84x = 28,035,724.96
  5. Step 5: Solve for x
    x = 28,035,724.96/5,676.84
  6. Step 6: Final answer
    x = 4,938.61

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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.