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Finding the Fourth Proportional to 4,083.40, 5,635.04 and 2,220.40

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Solution

The fourth proportional to 4,083.40, 5,635.04 and 2,220.40 is: 3,064.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,083.40 : 5,635.04 = 2,220.40 : x
  2. Step 2: Convert to fraction form
    4,083.40/5,635.04 = 2,220.40/x
  3. Step 3: Cross multiply
    4,083.40x = 5,635.04 × 2,220.40
  4. Step 4: Simplify right side
    4,083.40x = 12,512,042.82
  5. Step 5: Solve for x
    x = 12,512,042.82/4,083.40
  6. Step 6: Final answer
    x = 3,064.12

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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.