Home / 4,947.26-7,422-1,615.52

Finding the Fourth Proportional to 4,947.26, 7,422 and 1,615.52

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Solution

The fourth proportional to 4,947.26, 7,422 and 1,615.52 is: 2,423.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,947.26 : 7,422 = 1,615.52 : x
  2. Step 2: Convert to fraction form
    4,947.26/7,422 = 1,615.52/x
  3. Step 3: Cross multiply
    4,947.26x = 7,422 × 1,615.52
  4. Step 4: Simplify right side
    4,947.26x = 11,990,389.44
  5. Step 5: Solve for x
    x = 11,990,389.44/4,947.26
  6. Step 6: Final answer
    x = 2,423.64

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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.