Home / 1,981.43-2,732.06-1,607.24

Finding the Fourth Proportional to 1,981.43, 2,732.06 and 1,607.24

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Solution

The fourth proportional to 1,981.43, 2,732.06 and 1,607.24 is: 2,216.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.43 : 2,732.06 = 1,607.24 : x
  2. Step 2: Convert to fraction form
    1,981.43/2,732.06 = 1,607.24/x
  3. Step 3: Cross multiply
    1,981.43x = 2,732.06 × 1,607.24
  4. Step 4: Simplify right side
    1,981.43x = 4,391,054.42
  5. Step 5: Solve for x
    x = 4,391,054.42/1,981.43
  6. Step 6: Final answer
    x = 2,216.11

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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.