Home / 3,353.20-5,031.76-1,405.24

Finding the Fourth Proportional to 3,353.20, 5,031.76 and 1,405.24

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Solution

The fourth proportional to 3,353.20, 5,031.76 and 1,405.24 is: 2,108.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,353.20 : 5,031.76 = 1,405.24 : x
  2. Step 2: Convert to fraction form
    3,353.20/5,031.76 = 1,405.24/x
  3. Step 3: Cross multiply
    3,353.20x = 5,031.76 × 1,405.24
  4. Step 4: Simplify right side
    3,353.20x = 7,070,830.42
  5. Step 5: Solve for x
    x = 7,070,830.42/3,353.20
  6. Step 6: Final answer
    x = 2,108.68

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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.