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Finding the Fourth Proportional to 4,614.84, 6,921.86 and 1,327.32

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Solution

The fourth proportional to 4,614.84, 6,921.86 and 1,327.32 is: 1,990.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,614.84 : 6,921.86 = 1,327.32 : x
  2. Step 2: Convert to fraction form
    4,614.84/6,921.86 = 1,327.32/x
  3. Step 3: Cross multiply
    4,614.84x = 6,921.86 × 1,327.32
  4. Step 4: Simplify right side
    4,614.84x = 9,187,516.58
  5. Step 5: Solve for x
    x = 9,187,516.58/4,614.84
  6. Step 6: Final answer
    x = 1,990.86

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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.