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Finding the Fourth Proportional to 5,297.90, 7,945.45 and 2,519.03

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Solution

The fourth proportional to 5,297.90, 7,945.45 and 2,519.03 is: 3,777.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,297.90 : 7,945.45 = 2,519.03 : x
  2. Step 2: Convert to fraction form
    5,297.90/7,945.45 = 2,519.03/x
  3. Step 3: Cross multiply
    5,297.90x = 7,945.45 × 2,519.03
  4. Step 4: Simplify right side
    5,297.90x = 20,014,840.48
  5. Step 5: Solve for x
    x = 20,014,840.48/5,297.90
  6. Step 6: Final answer
    x = 3,777.89

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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.