Home / 2,162.66-2,981.49-1,631.30

Finding the Fourth Proportional to 2,162.66, 2,981.49 and 1,631.30

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Solution

The fourth proportional to 2,162.66, 2,981.49 and 1,631.30 is: 2,248.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,162.66 : 2,981.49 = 1,631.30 : x
  2. Step 2: Convert to fraction form
    2,162.66/2,981.49 = 1,631.30/x
  3. Step 3: Cross multiply
    2,162.66x = 2,981.49 × 1,631.30
  4. Step 4: Simplify right side
    2,162.66x = 4,863,704.64
  5. Step 5: Solve for x
    x = 4,863,704.64/2,162.66
  6. Step 6: Final answer
    x = 2,248.95

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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.