Home / 1,981.62-2,733.03-1,234.14

Finding the Fourth Proportional to 1,981.62, 2,733.03 and 1,234.14

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Solution

The fourth proportional to 1,981.62, 2,733.03 and 1,234.14 is: 1,702.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981.62 : 2,733.03 = 1,234.14 : x
  2. Step 2: Convert to fraction form
    1,981.62/2,733.03 = 1,234.14/x
  3. Step 3: Cross multiply
    1,981.62x = 2,733.03 × 1,234.14
  4. Step 4: Simplify right side
    1,981.62x = 3,372,941.64
  5. Step 5: Solve for x
    x = 3,372,941.64/1,981.62
  6. Step 6: Final answer
    x = 1,702.11

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1.5x scale

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.