Home / 3,492.74-5,240.82-1,643.78

Finding the Fourth Proportional to 3,492.74, 5,240.82 and 1,643.78

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Solution

The fourth proportional to 3,492.74, 5,240.82 and 1,643.78 is: 2,466.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,492.74 : 5,240.82 = 1,643.78 : x
  2. Step 2: Convert to fraction form
    3,492.74/5,240.82 = 1,643.78/x
  3. Step 3: Cross multiply
    3,492.74x = 5,240.82 × 1,643.78
  4. Step 4: Simplify right side
    3,492.74x = 8,614,755.10
  5. Step 5: Solve for x
    x = 8,614,755.10/3,492.74
  6. Step 6: Final answer
    x = 2,466.47

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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.