Home / 4,751.91-7,127.78-2,151.81

Finding the Fourth Proportional to 4,751.91, 7,127.78 and 2,151.81

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Solution

The fourth proportional to 4,751.91, 7,127.78 and 2,151.81 is: 3,227.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,751.91 : 7,127.78 = 2,151.81 : x
  2. Step 2: Convert to fraction form
    4,751.91/7,127.78 = 2,151.81/x
  3. Step 3: Cross multiply
    4,751.91x = 7,127.78 × 2,151.81
  4. Step 4: Simplify right side
    4,751.91x = 15,337,617.52
  5. Step 5: Solve for x
    x = 15,337,617.52/4,751.91
  6. Step 6: Final answer
    x = 3,227.67

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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.