Home / 7,487.83-11,231.75-3,102.90

Finding the Fourth Proportional to 7,487.83, 11,231.75 and 3,102.90

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Solution

The fourth proportional to 7,487.83, 11,231.75 and 3,102.90 is: 4,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.83 : 11,231.75 = 3,102.90 : x
  2. Step 2: Convert to fraction form
    7,487.83/11,231.75 = 3,102.90/x
  3. Step 3: Cross multiply
    7,487.83x = 11,231.75 × 3,102.90
  4. Step 4: Simplify right side
    7,487.83x = 34,850,997.08
  5. Step 5: Solve for x
    x = 34,850,997.08/7,487.83
  6. Step 6: Final answer
    x = 4,654.35

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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.