Home / 2,749.16-4,121.30-993.75

Finding the Fourth Proportional to 2,749.16, 4,121.30 and 993.75

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Solution

The fourth proportional to 2,749.16, 4,121.30 and 993.75 is: 1,489.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,749.16 : 4,121.30 = 993.75 : x
  2. Step 2: Convert to fraction form
    2,749.16/4,121.30 = 993.75/x
  3. Step 3: Cross multiply
    2,749.16x = 4,121.30 × 993.75
  4. Step 4: Simplify right side
    2,749.16x = 4,095,536.91
  5. Step 5: Solve for x
    x = 4,095,536.91/2,749.16
  6. Step 6: Final answer
    x = 1,489.74

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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.