Home / 4,276.45-6,403.09-2,220.13

Finding the Fourth Proportional to 4,276.45, 6,403.09 and 2,220.13

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Solution

The fourth proportional to 4,276.45, 6,403.09 and 2,220.13 is: 3,324.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,276.45 : 6,403.09 = 2,220.13 : x
  2. Step 2: Convert to fraction form
    4,276.45/6,403.09 = 2,220.13/x
  3. Step 3: Cross multiply
    4,276.45x = 6,403.09 × 2,220.13
  4. Step 4: Simplify right side
    4,276.45x = 14,215,692.20
  5. Step 5: Solve for x
    x = 14,215,692.20/4,276.45
  6. Step 6: Final answer
    x = 3,324.18

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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.