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Finding the Fourth Proportional to 5,989.50, 8,265.60 and 3,505.50

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Solution

The fourth proportional to 5,989.50, 8,265.60 and 3,505.50 is: 4,837.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,989.50 : 8,265.60 = 3,505.50 : x
  2. Step 2: Convert to fraction form
    5,989.50/8,265.60 = 3,505.50/x
  3. Step 3: Cross multiply
    5,989.50x = 8,265.60 × 3,505.50
  4. Step 4: Simplify right side
    5,989.50x = 28,975,060.80
  5. Step 5: Solve for x
    x = 28,975,060.80/5,989.50
  6. Step 6: Final answer
    x = 4,837.64

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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.