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Finding the Fourth Proportional to 3,981.22, 5,492.50 and 2,302.32

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Solution

The fourth proportional to 3,981.22, 5,492.50 and 2,302.32 is: 3,176.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,981.22 : 5,492.50 = 2,302.32 : x
  2. Step 2: Convert to fraction form
    3,981.22/5,492.50 = 2,302.32/x
  3. Step 3: Cross multiply
    3,981.22x = 5,492.50 × 2,302.32
  4. Step 4: Simplify right side
    3,981.22x = 12,645,492.60
  5. Step 5: Solve for x
    x = 12,645,492.60/3,981.22
  6. Step 6: Final answer
    x = 3,176.29

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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.