Home / 4,822.50-6,650.49-3,145.20

Finding the Fourth Proportional to 4,822.50, 6,650.49 and 3,145.20

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Solution

The fourth proportional to 4,822.50, 6,650.49 and 3,145.20 is: 4,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,822.50 : 6,650.49 = 3,145.20 : x
  2. Step 2: Convert to fraction form
    4,822.50/6,650.49 = 3,145.20/x
  3. Step 3: Cross multiply
    4,822.50x = 6,650.49 × 3,145.20
  4. Step 4: Simplify right side
    4,822.50x = 20,917,121.15
  5. Step 5: Solve for x
    x = 20,917,121.15/4,822.50
  6. Step 6: Final answer
    x = 4,337.40

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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.