Home / 2,764.64-4,148.58-1,983.80

Finding the Fourth Proportional to 2,764.64, 4,148.58 and 1,983.80

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Solution

The fourth proportional to 2,764.64, 4,148.58 and 1,983.80 is: 2,976.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,764.64 : 4,148.58 = 1,983.80 : x
  2. Step 2: Convert to fraction form
    2,764.64/4,148.58 = 1,983.80/x
  3. Step 3: Cross multiply
    2,764.64x = 4,148.58 × 1,983.80
  4. Step 4: Simplify right side
    2,764.64x = 8,229,970.81
  5. Step 5: Solve for x
    x = 8,229,970.81/2,764.64
  6. Step 6: Final answer
    x = 2,976.87

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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.