Home / 5,388.15-7,436.53-3,149.58

Finding the Fourth Proportional to 5,388.15, 7,436.53 and 3,149.58

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Solution

The fourth proportional to 5,388.15, 7,436.53 and 3,149.58 is: 4,346.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.15 : 7,436.53 = 3,149.58 : x
  2. Step 2: Convert to fraction form
    5,388.15/7,436.53 = 3,149.58/x
  3. Step 3: Cross multiply
    5,388.15x = 7,436.53 × 3,149.58
  4. Step 4: Simplify right side
    5,388.15x = 23,421,960.26
  5. Step 5: Solve for x
    x = 23,421,960.26/5,388.15
  6. Step 6: Final answer
    x = 4,346.94

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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.