Home / 5,366.36-7,404.90-3,128.96

Finding the Fourth Proportional to 5,366.36, 7,404.90 and 3,128.96

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Solution

The fourth proportional to 5,366.36, 7,404.90 and 3,128.96 is: 4,317.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,366.36 : 7,404.90 = 3,128.96 : x
  2. Step 2: Convert to fraction form
    5,366.36/7,404.90 = 3,128.96/x
  3. Step 3: Cross multiply
    5,366.36x = 7,404.90 × 3,128.96
  4. Step 4: Simplify right side
    5,366.36x = 23,169,635.90
  5. Step 5: Solve for x
    x = 23,169,635.90/5,366.36
  6. Step 6: Final answer
    x = 4,317.57

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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.