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Finding the Fourth Proportional to 2,492.08, 3,755 and 2,068.72

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Solution

The fourth proportional to 2,492.08, 3,755 and 2,068.72 is: 3,117.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,492.08 : 3,755 = 2,068.72 : x
  2. Step 2: Convert to fraction form
    2,492.08/3,755 = 2,068.72/x
  3. Step 3: Cross multiply
    2,492.08x = 3,755 × 2,068.72
  4. Step 4: Simplify right side
    2,492.08x = 7,768,043.60
  5. Step 5: Solve for x
    x = 7,768,043.60/2,492.08
  6. Step 6: Final answer
    x = 3,117.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.