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Finding the Fourth Proportional to 6,123, 8,449.78 and 3,328.60

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Solution

The fourth proportional to 6,123, 8,449.78 and 3,328.60 is: 4,593.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,123 : 8,449.78 = 3,328.60 : x
  2. Step 2: Convert to fraction form
    6,123/8,449.78 = 3,328.60/x
  3. Step 3: Cross multiply
    6,123x = 8,449.78 × 3,328.60
  4. Step 4: Simplify right side
    6,123x = 28,125,937.71
  5. Step 5: Solve for x
    x = 28,125,937.71/6,123
  6. Step 6: Final answer
    x = 4,593.49

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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.