Home / 3,784.48-5,677.70-1,187.44

Finding the Fourth Proportional to 3,784.48, 5,677.70 and 1,187.44

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Solution

The fourth proportional to 3,784.48, 5,677.70 and 1,187.44 is: 1,781.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,784.48 : 5,677.70 = 1,187.44 : x
  2. Step 2: Convert to fraction form
    3,784.48/5,677.70 = 1,187.44/x
  3. Step 3: Cross multiply
    3,784.48x = 5,677.70 × 1,187.44
  4. Step 4: Simplify right side
    3,784.48x = 6,741,928.09
  5. Step 5: Solve for x
    x = 6,741,928.09/3,784.48
  6. Step 6: Final answer
    x = 1,781.47

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1.5x scale

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.