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Finding the Fourth Proportional to 6,191.92, 9,287.88 and 1,809.46

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Solution

The fourth proportional to 6,191.92, 9,287.88 and 1,809.46 is: 2,714.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,191.92 : 9,287.88 = 1,809.46 : x
  2. Step 2: Convert to fraction form
    6,191.92/9,287.88 = 1,809.46/x
  3. Step 3: Cross multiply
    6,191.92x = 9,287.88 × 1,809.46
  4. Step 4: Simplify right side
    6,191.92x = 16,806,047.34
  5. Step 5: Solve for x
    x = 16,806,047.34/6,191.92
  6. Step 6: Final answer
    x = 2,714.19

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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.