Home / 3,019.76-4,529.64-1,288.28

Finding the Fourth Proportional to 3,019.76, 4,529.64 and 1,288.28

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Solution

The fourth proportional to 3,019.76, 4,529.64 and 1,288.28 is: 1,932.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,019.76 : 4,529.64 = 1,288.28 : x
  2. Step 2: Convert to fraction form
    3,019.76/4,529.64 = 1,288.28/x
  3. Step 3: Cross multiply
    3,019.76x = 4,529.64 × 1,288.28
  4. Step 4: Simplify right side
    3,019.76x = 5,835,444.62
  5. Step 5: Solve for x
    x = 5,835,444.62/3,019.76
  6. Step 6: Final answer
    x = 1,932.42

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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.