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Finding the Fourth Proportional to 2,381.50, 3,573.62 and 994.88

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Solution

The fourth proportional to 2,381.50, 3,573.62 and 994.88 is: 1,492.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.50 : 3,573.62 = 994.88 : x
  2. Step 2: Convert to fraction form
    2,381.50/3,573.62 = 994.88/x
  3. Step 3: Cross multiply
    2,381.50x = 3,573.62 × 994.88
  4. Step 4: Simplify right side
    2,381.50x = 3,555,323.07
  5. Step 5: Solve for x
    x = 3,555,323.07/2,381.50
  6. Step 6: Final answer
    x = 1,492.89

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1.5x scale

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.