Home / 6,664.72-9,997.07-1,984.79

Finding the Fourth Proportional to 6,664.72, 9,997.07 and 1,984.79

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Solution

The fourth proportional to 6,664.72, 9,997.07 and 1,984.79 is: 2,977.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,664.72 : 9,997.07 = 1,984.79 : x
  2. Step 2: Convert to fraction form
    6,664.72/9,997.07 = 1,984.79/x
  3. Step 3: Cross multiply
    6,664.72x = 9,997.07 × 1,984.79
  4. Step 4: Simplify right side
    6,664.72x = 19,842,114.52
  5. Step 5: Solve for x
    x = 19,842,114.52/6,664.72
  6. Step 6: Final answer
    x = 2,977.19

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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.