Home / 4,948.78-7,422.99-1,661.80

Finding the Fourth Proportional to 4,948.78, 7,422.99 and 1,661.80

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Solution

The fourth proportional to 4,948.78, 7,422.99 and 1,661.80 is: 2,492.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,948.78 : 7,422.99 = 1,661.80 : x
  2. Step 2: Convert to fraction form
    4,948.78/7,422.99 = 1,661.80/x
  3. Step 3: Cross multiply
    4,948.78x = 7,422.99 × 1,661.80
  4. Step 4: Simplify right side
    4,948.78x = 12,335,524.78
  5. Step 5: Solve for x
    x = 12,335,524.78/4,948.78
  6. Step 6: Final answer
    x = 2,492.64

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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.