Home / 5,120.33-7,680.58-1,610.26

Finding the Fourth Proportional to 5,120.33, 7,680.58 and 1,610.26

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Solution

The fourth proportional to 5,120.33, 7,680.58 and 1,610.26 is: 2,415.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120.33 : 7,680.58 = 1,610.26 : x
  2. Step 2: Convert to fraction form
    5,120.33/7,680.58 = 1,610.26/x
  3. Step 3: Cross multiply
    5,120.33x = 7,680.58 × 1,610.26
  4. Step 4: Simplify right side
    5,120.33x = 12,367,707.52
  5. Step 5: Solve for x
    x = 12,367,707.52/5,120.33
  6. Step 6: Final answer
    x = 2,415.41

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1.5x scale

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.