Home / 3,020.17-4,530.84-1,288.75

Finding the Fourth Proportional to 3,020.17, 4,530.84 and 1,288.75

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Solution

The fourth proportional to 3,020.17, 4,530.84 and 1,288.75 is: 1,933.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,020.17 : 4,530.84 = 1,288.75 : x
  2. Step 2: Convert to fraction form
    3,020.17/4,530.84 = 1,288.75/x
  3. Step 3: Cross multiply
    3,020.17x = 4,530.84 × 1,288.75
  4. Step 4: Simplify right side
    3,020.17x = 5,839,120.05
  5. Step 5: Solve for x
    x = 5,839,120.05/3,020.17
  6. Step 6: Final answer
    x = 1,933.37

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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.