Home / 4,821.20-6,650.70-3,249.80

Finding the Fourth Proportional to 4,821.20, 6,650.70 and 3,249.80

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Solution

The fourth proportional to 4,821.20, 6,650.70 and 3,249.80 is: 4,483.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,821.20 : 6,650.70 = 3,249.80 : x
  2. Step 2: Convert to fraction form
    4,821.20/6,650.70 = 3,249.80/x
  3. Step 3: Cross multiply
    4,821.20x = 6,650.70 × 3,249.80
  4. Step 4: Simplify right side
    4,821.20x = 21,613,444.86
  5. Step 5: Solve for x
    x = 21,613,444.86/4,821.20
  6. Step 6: Final answer
    x = 4,483.00

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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.