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Finding the Fourth Proportional to 6,321.40, 8,723.53 and 3,526.90

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Solution

The fourth proportional to 6,321.40, 8,723.53 and 3,526.90 is: 4,867.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321.40 : 8,723.53 = 3,526.90 : x
  2. Step 2: Convert to fraction form
    6,321.40/8,723.53 = 3,526.90/x
  3. Step 3: Cross multiply
    6,321.40x = 8,723.53 × 3,526.90
  4. Step 4: Simplify right side
    6,321.40x = 30,766,987.33
  5. Step 5: Solve for x
    x = 30,766,987.33/6,321.40
  6. Step 6: Final answer
    x = 4,867.12

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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.