Home / 7,487.06-11,230.36-1,940.20

Finding the Fourth Proportional to 7,487.06, 11,230.36 and 1,940.20

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Solution

The fourth proportional to 7,487.06, 11,230.36 and 1,940.20 is: 2,910.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,487.06 : 11,230.36 = 1,940.20 : x
  2. Step 2: Convert to fraction form
    7,487.06/11,230.36 = 1,940.20/x
  3. Step 3: Cross multiply
    7,487.06x = 11,230.36 × 1,940.20
  4. Step 4: Simplify right side
    7,487.06x = 21,789,144.47
  5. Step 5: Solve for x
    x = 21,789,144.47/7,487.06
  6. Step 6: Final answer
    x = 2,910.24

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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.