Home / 1,664.60-2,493.78-1,392.44

Finding the Fourth Proportional to 1,664.60, 2,493.78 and 1,392.44

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Solution

The fourth proportional to 1,664.60, 2,493.78 and 1,392.44 is: 2,086.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664.60 : 2,493.78 = 1,392.44 : x
  2. Step 2: Convert to fraction form
    1,664.60/2,493.78 = 1,392.44/x
  3. Step 3: Cross multiply
    1,664.60x = 2,493.78 × 1,392.44
  4. Step 4: Simplify right side
    1,664.60x = 3,472,439.02
  5. Step 5: Solve for x
    x = 3,472,439.02/1,664.60
  6. Step 6: Final answer
    x = 2,086.05

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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.