Home / 4,191.75-6,287.63-1,270.28

Finding the Fourth Proportional to 4,191.75, 6,287.63 and 1,270.28

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Solution

The fourth proportional to 4,191.75, 6,287.63 and 1,270.28 is: 1,905.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,191.75 : 6,287.63 = 1,270.28 : x
  2. Step 2: Convert to fraction form
    4,191.75/6,287.63 = 1,270.28/x
  3. Step 3: Cross multiply
    4,191.75x = 6,287.63 × 1,270.28
  4. Step 4: Simplify right side
    4,191.75x = 7,987,060.00
  5. Step 5: Solve for x
    x = 7,987,060.00/4,191.75
  6. Step 6: Final answer
    x = 1,905.42

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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.