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Finding the Fourth Proportional to 3,492.86, 4,820.13 and 1,920.94

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Solution

The fourth proportional to 3,492.86, 4,820.13 and 1,920.94 is: 2,650.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.86 : 4,820.13 = 1,920.94 : x
  2. Step 2: Convert to fraction form
    3,492.86/4,820.13 = 1,920.94/x
  3. Step 3: Cross multiply
    3,492.86x = 4,820.13 × 1,920.94
  4. Step 4: Simplify right side
    3,492.86x = 9,259,168.47
  5. Step 5: Solve for x
    x = 9,259,168.47/3,492.86
  6. Step 6: Final answer
    x = 2,650.89

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.