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Finding the Fourth Proportional to 6,321.88, 9,484.02 and 2,161.72

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Solution

The fourth proportional to 6,321.88, 9,484.02 and 2,161.72 is: 3,242.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,321.88 : 9,484.02 = 2,161.72 : x
  2. Step 2: Convert to fraction form
    6,321.88/9,484.02 = 2,161.72/x
  3. Step 3: Cross multiply
    6,321.88x = 9,484.02 × 2,161.72
  4. Step 4: Simplify right side
    6,321.88x = 20,501,795.71
  5. Step 5: Solve for x
    x = 20,501,795.71/6,321.88
  6. Step 6: Final answer
    x = 3,242.99

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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.