Home / 5,117.72-7,676.73-1,997.60

Finding the Fourth Proportional to 5,117.72, 7,676.73 and 1,997.60

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Solution

The fourth proportional to 5,117.72, 7,676.73 and 1,997.60 is: 2,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.72 : 7,676.73 = 1,997.60 : x
  2. Step 2: Convert to fraction form
    5,117.72/7,676.73 = 1,997.60/x
  3. Step 3: Cross multiply
    5,117.72x = 7,676.73 × 1,997.60
  4. Step 4: Simplify right side
    5,117.72x = 15,334,997.46
  5. Step 5: Solve for x
    x = 15,334,997.46/5,117.72
  6. Step 6: Final answer
    x = 2,996.45

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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.