Home / 3,031.37-4,543.56-1,388.09

Finding the Fourth Proportional to 3,031.37, 4,543.56 and 1,388.09

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Solution

The fourth proportional to 3,031.37, 4,543.56 and 1,388.09 is: 2,080.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,031.37 : 4,543.56 = 1,388.09 : x
  2. Step 2: Convert to fraction form
    3,031.37/4,543.56 = 1,388.09/x
  3. Step 3: Cross multiply
    3,031.37x = 4,543.56 × 1,388.09
  4. Step 4: Simplify right side
    3,031.37x = 6,306,847.48
  5. Step 5: Solve for x
    x = 6,306,847.48/3,031.37
  6. Step 6: Final answer
    x = 2,080.53

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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.