Home / 3,353.70-4,627.89-1,861.56

Finding the Fourth Proportional to 3,353.70, 4,627.89 and 1,861.56

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Solution

The fourth proportional to 3,353.70, 4,627.89 and 1,861.56 is: 2,568.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.70 : 4,627.89 = 1,861.56 : x
  2. Step 2: Convert to fraction form
    3,353.70/4,627.89 = 1,861.56/x
  3. Step 3: Cross multiply
    3,353.70x = 4,627.89 × 1,861.56
  4. Step 4: Simplify right side
    3,353.70x = 8,615,094.91
  5. Step 5: Solve for x
    x = 8,615,094.91/3,353.70
  6. Step 6: Final answer
    x = 2,568.83

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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.