Home / 5,146.26-7,718.57-1,635.80

Finding the Fourth Proportional to 5,146.26, 7,718.57 and 1,635.80

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Solution

The fourth proportional to 5,146.26, 7,718.57 and 1,635.80 is: 2,453.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.26 : 7,718.57 = 1,635.80 : x
  2. Step 2: Convert to fraction form
    5,146.26/7,718.57 = 1,635.80/x
  3. Step 3: Cross multiply
    5,146.26x = 7,718.57 × 1,635.80
  4. Step 4: Simplify right side
    5,146.26x = 12,626,036.81
  5. Step 5: Solve for x
    x = 12,626,036.81/5,146.26
  6. Step 6: Final answer
    x = 2,453.44

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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.