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Finding the Fourth Proportional to 6,373.84, 8,794.74 and 3,721.72

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Solution

The fourth proportional to 6,373.84, 8,794.74 and 3,721.72 is: 5,135.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,373.84 : 8,794.74 = 3,721.72 : x
  2. Step 2: Convert to fraction form
    6,373.84/8,794.74 = 3,721.72/x
  3. Step 3: Cross multiply
    6,373.84x = 8,794.74 × 3,721.72
  4. Step 4: Simplify right side
    6,373.84x = 32,731,559.75
  5. Step 5: Solve for x
    x = 32,731,559.75/6,373.84
  6. Step 6: Final answer
    x = 5,135.30

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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.