Home / 7,420.58-11,131.02-3,469.66

Finding the Fourth Proportional to 7,420.58, 11,131.02 and 3,469.66

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Solution

The fourth proportional to 7,420.58, 11,131.02 and 3,469.66 is: 5,204.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,420.58 : 11,131.02 = 3,469.66 : x
  2. Step 2: Convert to fraction form
    7,420.58/11,131.02 = 3,469.66/x
  3. Step 3: Cross multiply
    7,420.58x = 11,131.02 × 3,469.66
  4. Step 4: Simplify right side
    7,420.58x = 38,620,889.64
  5. Step 5: Solve for x
    x = 38,620,889.64/7,420.58
  6. Step 6: Final answer
    x = 5,204.56

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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.