Home / 1,677.60-2,512.30-1,182.80

Finding the Fourth Proportional to 1,677.60, 2,512.30 and 1,182.80

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Solution

The fourth proportional to 1,677.60, 2,512.30 and 1,182.80 is: 1,771.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.60 : 2,512.30 = 1,182.80 : x
  2. Step 2: Convert to fraction form
    1,677.60/2,512.30 = 1,182.80/x
  3. Step 3: Cross multiply
    1,677.60x = 2,512.30 × 1,182.80
  4. Step 4: Simplify right side
    1,677.60x = 2,971,548.44
  5. Step 5: Solve for x
    x = 2,971,548.44/1,677.60
  6. Step 6: Final answer
    x = 1,771.31

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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.