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Finding the Fourth Proportional to 3,509.87, 5,262.05 and 1,754.79

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Solution

The fourth proportional to 3,509.87, 5,262.05 and 1,754.79 is: 2,630.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,509.87 : 5,262.05 = 1,754.79 : x
  2. Step 2: Convert to fraction form
    3,509.87/5,262.05 = 1,754.79/x
  3. Step 3: Cross multiply
    3,509.87x = 5,262.05 × 1,754.79
  4. Step 4: Simplify right side
    3,509.87x = 9,233,783.95
  5. Step 5: Solve for x
    x = 9,233,783.95/3,509.87
  6. Step 6: Final answer
    x = 2,630.81

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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.