Home / 2,750.32-4,121.60-1,518.28

Finding the Fourth Proportional to 2,750.32, 4,121.60 and 1,518.28

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Solution

The fourth proportional to 2,750.32, 4,121.60 and 1,518.28 is: 2,275.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.32 : 4,121.60 = 1,518.28 : x
  2. Step 2: Convert to fraction form
    2,750.32/4,121.60 = 1,518.28/x
  3. Step 3: Cross multiply
    2,750.32x = 4,121.60 × 1,518.28
  4. Step 4: Simplify right side
    2,750.32x = 6,257,742.85
  5. Step 5: Solve for x
    x = 6,257,742.85/2,750.32
  6. Step 6: Final answer
    x = 2,275.28

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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.