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Finding the Fourth Proportional to 6,179.69, 8,528.19 and 3,385.19

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Solution

The fourth proportional to 6,179.69, 8,528.19 and 3,385.19 is: 4,671.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,179.69 : 8,528.19 = 3,385.19 : x
  2. Step 2: Convert to fraction form
    6,179.69/8,528.19 = 3,385.19/x
  3. Step 3: Cross multiply
    6,179.69x = 8,528.19 × 3,385.19
  4. Step 4: Simplify right side
    6,179.69x = 28,869,526.58
  5. Step 5: Solve for x
    x = 28,869,526.58/6,179.69
  6. Step 6: Final answer
    x = 4,671.68

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Half scale
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Double scale
Find fourth proportional to 6,180.69, 8,529.57 and 3,386.19
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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.