Home / 1,529.15-2,293.73-1,311.38

Finding the Fourth Proportional to 1,529.15, 2,293.73 and 1,311.38

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Solution

The fourth proportional to 1,529.15, 2,293.73 and 1,311.38 is: 1,967.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,529.15 : 2,293.73 = 1,311.38 : x
  2. Step 2: Convert to fraction form
    1,529.15/2,293.73 = 1,311.38/x
  3. Step 3: Cross multiply
    1,529.15x = 2,293.73 × 1,311.38
  4. Step 4: Simplify right side
    1,529.15x = 3,007,933.62
  5. Step 5: Solve for x
    x = 3,007,933.62/1,529.15
  6. Step 6: Final answer
    x = 1,967.07

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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.