Home / 1,520.25-2,275.37-1,074.66

Finding the Fourth Proportional to 1,520.25, 2,275.37 and 1,074.66

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Solution

The fourth proportional to 1,520.25, 2,275.37 and 1,074.66 is: 1,608.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.25 : 2,275.37 = 1,074.66 : x
  2. Step 2: Convert to fraction form
    1,520.25/2,275.37 = 1,074.66/x
  3. Step 3: Cross multiply
    1,520.25x = 2,275.37 × 1,074.66
  4. Step 4: Simplify right side
    1,520.25x = 2,445,243.75
  5. Step 5: Solve for x
    x = 2,445,243.75/1,520.25
  6. Step 6: Final answer
    x = 1,608.45

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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.