Home / 7,221.06-10,831.60-1,749.06

Finding the Fourth Proportional to 7,221.06, 10,831.60 and 1,749.06

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Solution

The fourth proportional to 7,221.06, 10,831.60 and 1,749.06 is: 2,623.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.06 : 10,831.60 = 1,749.06 : x
  2. Step 2: Convert to fraction form
    7,221.06/10,831.60 = 1,749.06/x
  3. Step 3: Cross multiply
    7,221.06x = 10,831.60 × 1,749.06
  4. Step 4: Simplify right side
    7,221.06x = 18,945,118.30
  5. Step 5: Solve for x
    x = 18,945,118.30/7,221.06
  6. Step 6: Final answer
    x = 2,623.59

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Similar ratio
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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.