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Finding the Fourth Proportional to 3,861.95, 5,793.72 and 1,553.45

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Solution

The fourth proportional to 3,861.95, 5,793.72 and 1,553.45 is: 2,330.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.95 : 5,793.72 = 1,553.45 : x
  2. Step 2: Convert to fraction form
    3,861.95/5,793.72 = 1,553.45/x
  3. Step 3: Cross multiply
    3,861.95x = 5,793.72 × 1,553.45
  4. Step 4: Simplify right side
    3,861.95x = 9,000,225.37
  5. Step 5: Solve for x
    x = 9,000,225.37/3,861.95
  6. Step 6: Final answer
    x = 2,330.49

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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.