Home / 5,388.61-7,436.96-3,031.21

Finding the Fourth Proportional to 5,388.61, 7,436.96 and 3,031.21

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Solution

The fourth proportional to 5,388.61, 7,436.96 and 3,031.21 is: 4,183.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,388.61 : 7,436.96 = 3,031.21 : x
  2. Step 2: Convert to fraction form
    5,388.61/7,436.96 = 3,031.21/x
  3. Step 3: Cross multiply
    5,388.61x = 7,436.96 × 3,031.21
  4. Step 4: Simplify right side
    5,388.61x = 22,542,968.25
  5. Step 5: Solve for x
    x = 22,542,968.25/5,388.61
  6. Step 6: Final answer
    x = 4,183.45

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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.