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Finding the Fourth Proportional to 3,510.87, 5,274.49 and 3,018.79

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Solution

The fourth proportional to 3,510.87, 5,274.49 and 3,018.79 is: 4,535.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,510.87 : 5,274.49 = 3,018.79 : x
  2. Step 2: Convert to fraction form
    3,510.87/5,274.49 = 3,018.79/x
  3. Step 3: Cross multiply
    3,510.87x = 5,274.49 × 3,018.79
  4. Step 4: Simplify right side
    3,510.87x = 15,922,577.67
  5. Step 5: Solve for x
    x = 15,922,577.67/3,510.87
  6. Step 6: Final answer
    x = 4,535.22

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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.