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Finding the Fourth Proportional to 6,466.80, 8,922.78 and 3,672.30

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Solution

The fourth proportional to 6,466.80, 8,922.78 and 3,672.30 is: 5,066.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,466.80 : 8,922.78 = 3,672.30 : x
  2. Step 2: Convert to fraction form
    6,466.80/8,922.78 = 3,672.30/x
  3. Step 3: Cross multiply
    6,466.80x = 8,922.78 × 3,672.30
  4. Step 4: Simplify right side
    6,466.80x = 32,767,124.99
  5. Step 5: Solve for x
    x = 32,767,124.99/6,466.80
  6. Step 6: Final answer
    x = 5,066.98

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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.