Home / 4,744.30-7,116.45-3,189.10

Finding the Fourth Proportional to 4,744.30, 7,116.45 and 3,189.10

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Solution

The fourth proportional to 4,744.30, 7,116.45 and 3,189.10 is: 4,783.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,744.30 : 7,116.45 = 3,189.10 : x
  2. Step 2: Convert to fraction form
    4,744.30/7,116.45 = 3,189.10/x
  3. Step 3: Cross multiply
    4,744.30x = 7,116.45 × 3,189.10
  4. Step 4: Simplify right side
    4,744.30x = 22,695,070.70
  5. Step 5: Solve for x
    x = 22,695,070.70/4,744.30
  6. Step 6: Final answer
    x = 4,783.65

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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.