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Finding the Fourth Proportional to 3,353.07, 4,627.11 and 1,861.05

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Solution

The fourth proportional to 3,353.07, 4,627.11 and 1,861.05 is: 2,568.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.07 : 4,627.11 = 1,861.05 : x
  2. Step 2: Convert to fraction form
    3,353.07/4,627.11 = 1,861.05/x
  3. Step 3: Cross multiply
    3,353.07x = 4,627.11 × 1,861.05
  4. Step 4: Simplify right side
    3,353.07x = 8,611,283.07
  5. Step 5: Solve for x
    x = 8,611,283.07/3,353.07
  6. Step 6: Final answer
    x = 2,568.18

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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.