Home / 1,323.21-1,983.18-591.28

Finding the Fourth Proportional to 1,323.21, 1,983.18 and 591.28

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Solution

The fourth proportional to 1,323.21, 1,983.18 and 591.28 is: 886.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323.21 : 1,983.18 = 591.28 : x
  2. Step 2: Convert to fraction form
    1,323.21/1,983.18 = 591.28/x
  3. Step 3: Cross multiply
    1,323.21x = 1,983.18 × 591.28
  4. Step 4: Simplify right side
    1,323.21x = 1,172,611.93
  5. Step 5: Solve for x
    x = 1,172,611.93/1,323.21
  6. Step 6: Final answer
    x = 886.18

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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.