Home / 5,440.38-8,160.56-1,336.38

Finding the Fourth Proportional to 5,440.38, 8,160.56 and 1,336.38

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Solution

The fourth proportional to 5,440.38, 8,160.56 and 1,336.38 is: 2,004.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,440.38 : 8,160.56 = 1,336.38 : x
  2. Step 2: Convert to fraction form
    5,440.38/8,160.56 = 1,336.38/x
  3. Step 3: Cross multiply
    5,440.38x = 8,160.56 × 1,336.38
  4. Step 4: Simplify right side
    5,440.38x = 10,905,609.17
  5. Step 5: Solve for x
    x = 10,905,609.17/5,440.38
  6. Step 6: Final answer
    x = 2,004.57

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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.