Home / 7,354.20-11,031.30-4,234.20

Finding the Fourth Proportional to 7,354.20, 11,031.30 and 4,234.20

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Solution

The fourth proportional to 7,354.20, 11,031.30 and 4,234.20 is: 6,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,354.20 : 11,031.30 = 4,234.20 : x
  2. Step 2: Convert to fraction form
    7,354.20/11,031.30 = 4,234.20/x
  3. Step 3: Cross multiply
    7,354.20x = 11,031.30 × 4,234.20
  4. Step 4: Simplify right side
    7,354.20x = 46,708,730.46
  5. Step 5: Solve for x
    x = 46,708,730.46/7,354.20
  6. Step 6: Final answer
    x = 6,351.30

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1.5x scale

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.