Home / 5,445.15-7,515.39-3,087.37

Finding the Fourth Proportional to 5,445.15, 7,515.39 and 3,087.37

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Solution

The fourth proportional to 5,445.15, 7,515.39 and 3,087.37 is: 4,261.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.15 : 7,515.39 = 3,087.37 : x
  2. Step 2: Convert to fraction form
    5,445.15/7,515.39 = 3,087.37/x
  3. Step 3: Cross multiply
    5,445.15x = 7,515.39 × 3,087.37
  4. Step 4: Simplify right side
    5,445.15x = 23,202,789.62
  5. Step 5: Solve for x
    x = 23,202,789.62/5,445.15
  6. Step 6: Final answer
    x = 4,261.18

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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.