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Finding the Fourth Proportional to 5,741.78, 8,615.19 and 2,455.70

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Solution

The fourth proportional to 5,741.78, 8,615.19 and 2,455.70 is: 3,684.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,741.78 : 8,615.19 = 2,455.70 : x
  2. Step 2: Convert to fraction form
    5,741.78/8,615.19 = 2,455.70/x
  3. Step 3: Cross multiply
    5,741.78x = 8,615.19 × 2,455.70
  4. Step 4: Simplify right side
    5,741.78x = 21,156,322.08
  5. Step 5: Solve for x
    x = 21,156,322.08/5,741.78
  6. Step 6: Final answer
    x = 3,684.63

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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.