Home / 1,981.32-2,732.31-1,584.24

Finding the Fourth Proportional to 1,981.32, 2,732.31 and 1,584.24

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Solution

The fourth proportional to 1,981.32, 2,732.31 and 1,584.24 is: 2,184.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.32 : 2,732.31 = 1,584.24 : x
  2. Step 2: Convert to fraction form
    1,981.32/2,732.31 = 1,584.24/x
  3. Step 3: Cross multiply
    1,981.32x = 2,732.31 × 1,584.24
  4. Step 4: Simplify right side
    1,981.32x = 4,328,634.79
  5. Step 5: Solve for x
    x = 4,328,634.79/1,981.32
  6. Step 6: Final answer
    x = 2,184.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.