Home / 1,677.25-2,515.60-1,188.82

Finding the Fourth Proportional to 1,677.25, 2,515.60 and 1,188.82

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Solution

The fourth proportional to 1,677.25, 2,515.60 and 1,188.82 is: 1,783.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,677.25 : 2,515.60 = 1,188.82 : x
  2. Step 2: Convert to fraction form
    1,677.25/2,515.60 = 1,188.82/x
  3. Step 3: Cross multiply
    1,677.25x = 2,515.60 × 1,188.82
  4. Step 4: Simplify right side
    1,677.25x = 2,990,595.59
  5. Step 5: Solve for x
    x = 2,990,595.59/1,677.25
  6. Step 6: Final answer
    x = 1,783.04

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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.