Home / 4,622.48-6,380.76-3,138.08

Finding the Fourth Proportional to 4,622.48, 6,380.76 and 3,138.08

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Solution

The fourth proportional to 4,622.48, 6,380.76 and 3,138.08 is: 4,331.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,622.48 : 6,380.76 = 3,138.08 : x
  2. Step 2: Convert to fraction form
    4,622.48/6,380.76 = 3,138.08/x
  3. Step 3: Cross multiply
    4,622.48x = 6,380.76 × 3,138.08
  4. Step 4: Simplify right side
    4,622.48x = 20,023,335.34
  5. Step 5: Solve for x
    x = 20,023,335.34/4,622.48
  6. Step 6: Final answer
    x = 4,331.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.