Home / 1,976.68-2,967.58-1,247.72

Finding the Fourth Proportional to 1,976.68, 2,967.58 and 1,247.72

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Solution

The fourth proportional to 1,976.68, 2,967.58 and 1,247.72 is: 1,873.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976.68 : 2,967.58 = 1,247.72 : x
  2. Step 2: Convert to fraction form
    1,976.68/2,967.58 = 1,247.72/x
  3. Step 3: Cross multiply
    1,976.68x = 2,967.58 × 1,247.72
  4. Step 4: Simplify right side
    1,976.68x = 3,702,708.92
  5. Step 5: Solve for x
    x = 3,702,708.92/1,976.68
  6. Step 6: Final answer
    x = 1,873.20

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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.