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Finding the Fourth Proportional to 3,604.91, 5,407.97 and 1,383.58

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Solution

The fourth proportional to 3,604.91, 5,407.97 and 1,383.58 is: 2,075.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,604.91 : 5,407.97 = 1,383.58 : x
  2. Step 2: Convert to fraction form
    3,604.91/5,407.97 = 1,383.58/x
  3. Step 3: Cross multiply
    3,604.91x = 5,407.97 × 1,383.58
  4. Step 4: Simplify right side
    3,604.91x = 7,482,358.97
  5. Step 5: Solve for x
    x = 7,482,358.97/3,604.91
  6. Step 6: Final answer
    x = 2,075.61

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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.