Home / 5,124.30-7,682.40-2,200.20

Finding the Fourth Proportional to 5,124.30, 7,682.40 and 2,200.20

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Solution

The fourth proportional to 5,124.30, 7,682.40 and 2,200.20 is: 3,298.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.30 : 7,682.40 = 2,200.20 : x
  2. Step 2: Convert to fraction form
    5,124.30/7,682.40 = 2,200.20/x
  3. Step 3: Cross multiply
    5,124.30x = 7,682.40 × 2,200.20
  4. Step 4: Simplify right side
    5,124.30x = 16,902,816.48
  5. Step 5: Solve for x
    x = 16,902,816.48/5,124.30
  6. Step 6: Final answer
    x = 3,298.56

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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.