Home / 4,420.20-6,630.30-2,688.42

Finding the Fourth Proportional to 4,420.20, 6,630.30 and 2,688.42

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Solution

The fourth proportional to 4,420.20, 6,630.30 and 2,688.42 is: 4,032.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,420.20 : 6,630.30 = 2,688.42 : x
  2. Step 2: Convert to fraction form
    4,420.20/6,630.30 = 2,688.42/x
  3. Step 3: Cross multiply
    4,420.20x = 6,630.30 × 2,688.42
  4. Step 4: Simplify right side
    4,420.20x = 17,825,031.13
  5. Step 5: Solve for x
    x = 17,825,031.13/4,420.20
  6. Step 6: Final answer
    x = 4,032.63

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Similar ratio
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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.