Home / 6,179.10-9,268.65-3,990.30

Finding the Fourth Proportional to 6,179.10, 9,268.65 and 3,990.30

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Solution

The fourth proportional to 6,179.10, 9,268.65 and 3,990.30 is: 5,985.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,179.10 : 9,268.65 = 3,990.30 : x
  2. Step 2: Convert to fraction form
    6,179.10/9,268.65 = 3,990.30/x
  3. Step 3: Cross multiply
    6,179.10x = 9,268.65 × 3,990.30
  4. Step 4: Simplify right side
    6,179.10x = 36,984,694.10
  5. Step 5: Solve for x
    x = 36,984,694.10/6,179.10
  6. Step 6: Final answer
    x = 5,985.45

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.