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Finding the Fourth Proportional to 2,381.05, 3,569.64 and 995.42

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Solution

The fourth proportional to 2,381.05, 3,569.64 and 995.42 is: 1,492.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,381.05 : 3,569.64 = 995.42 : x
  2. Step 2: Convert to fraction form
    2,381.05/3,569.64 = 995.42/x
  3. Step 3: Cross multiply
    2,381.05x = 3,569.64 × 995.42
  4. Step 4: Simplify right side
    2,381.05x = 3,553,273.20
  5. Step 5: Solve for x
    x = 3,553,273.20/2,381.05
  6. Step 6: Final answer
    x = 1,492.32

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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.