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Finding the Fourth Proportional to 6,355.50, 8,771.13 and 3,561.54

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Solution

The fourth proportional to 6,355.50, 8,771.13 and 3,561.54 is: 4,915.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,355.50 : 8,771.13 = 3,561.54 : x
  2. Step 2: Convert to fraction form
    6,355.50/8,771.13 = 3,561.54/x
  3. Step 3: Cross multiply
    6,355.50x = 8,771.13 × 3,561.54
  4. Step 4: Simplify right side
    6,355.50x = 31,238,730.34
  5. Step 5: Solve for x
    x = 31,238,730.34/6,355.50
  6. Step 6: Final answer
    x = 4,915.23

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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.