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Finding the Fourth Proportional to 3,574.59, 5,363.97 and 1,383.20

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Solution

The fourth proportional to 3,574.59, 5,363.97 and 1,383.20 is: 2,075.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,574.59 : 5,363.97 = 1,383.20 : x
  2. Step 2: Convert to fraction form
    3,574.59/5,363.97 = 1,383.20/x
  3. Step 3: Cross multiply
    3,574.59x = 5,363.97 × 1,383.20
  4. Step 4: Simplify right side
    3,574.59x = 7,419,443.30
  5. Step 5: Solve for x
    x = 7,419,443.30/3,574.59
  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.