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Finding the Fourth Proportional to 6,169.80, 8,505.54 and 3,810.60

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Solution

The fourth proportional to 6,169.80, 8,505.54 and 3,810.60 is: 5,253.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,169.80 : 8,505.54 = 3,810.60 : x
  2. Step 2: Convert to fraction form
    6,169.80/8,505.54 = 3,810.60/x
  3. Step 3: Cross multiply
    6,169.80x = 8,505.54 × 3,810.60
  4. Step 4: Simplify right side
    6,169.80x = 32,411,210.72
  5. Step 5: Solve for x
    x = 32,411,210.72/6,169.80
  6. Step 6: Final answer
    x = 5,253.20

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Half scale
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Double scale
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Similar ratio
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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.