Home / 5,149.09-7,110.78-4,398.67

Finding the Fourth Proportional to 5,149.09, 7,110.78 and 4,398.67

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Solution

The fourth proportional to 5,149.09, 7,110.78 and 4,398.67 is: 6,074.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,149.09 : 7,110.78 = 4,398.67 : x
  2. Step 2: Convert to fraction form
    5,149.09/7,110.78 = 4,398.67/x
  3. Step 3: Cross multiply
    5,149.09x = 7,110.78 × 4,398.67
  4. Step 4: Simplify right side
    5,149.09x = 31,277,974.66
  5. Step 5: Solve for x
    x = 31,277,974.66/5,149.09
  6. Step 6: Final answer
    x = 6,074.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.