Home / 4,750.72-7,128.96-1,831.04

Finding the Fourth Proportional to 4,750.72, 7,128.96 and 1,831.04

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Solution

The fourth proportional to 4,750.72, 7,128.96 and 1,831.04 is: 2,747.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,750.72 : 7,128.96 = 1,831.04 : x
  2. Step 2: Convert to fraction form
    4,750.72/7,128.96 = 1,831.04/x
  3. Step 3: Cross multiply
    4,750.72x = 7,128.96 × 1,831.04
  4. Step 4: Simplify right side
    4,750.72x = 13,053,410.92
  5. Step 5: Solve for x
    x = 13,053,410.92/4,750.72
  6. Step 6: Final answer
    x = 2,747.67

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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.