Home / 3,021.88-4,529.04-1,288.48

Finding the Fourth Proportional to 3,021.88, 4,529.04 and 1,288.48

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Solution

The fourth proportional to 3,021.88, 4,529.04 and 1,288.48 is: 1,931.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,021.88 : 4,529.04 = 1,288.48 : x
  2. Step 2: Convert to fraction form
    3,021.88/4,529.04 = 1,288.48/x
  3. Step 3: Cross multiply
    3,021.88x = 4,529.04 × 1,288.48
  4. Step 4: Simplify right side
    3,021.88x = 5,835,577.46
  5. Step 5: Solve for x
    x = 5,835,577.46/3,021.88
  6. Step 6: Final answer
    x = 1,931.11

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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.