Home / 5,516.70-7,615.20-3,749.32

Finding the Fourth Proportional to 5,516.70, 7,615.20 and 3,749.32

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Solution

The fourth proportional to 5,516.70, 7,615.20 and 3,749.32 is: 5,175.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,516.70 : 7,615.20 = 3,749.32 : x
  2. Step 2: Convert to fraction form
    5,516.70/7,615.20 = 3,749.32/x
  3. Step 3: Cross multiply
    5,516.70x = 7,615.20 × 3,749.32
  4. Step 4: Simplify right side
    5,516.70x = 28,551,821.66
  5. Step 5: Solve for x
    x = 28,551,821.66/5,516.70
  6. Step 6: Final answer
    x = 5,175.53

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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.