Home / 3,524.48-5,286.75-1,187.12

Finding the Fourth Proportional to 3,524.48, 5,286.75 and 1,187.12

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Solution

The fourth proportional to 3,524.48, 5,286.75 and 1,187.12 is: 1,780.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,524.48 : 5,286.75 = 1,187.12 : x
  2. Step 2: Convert to fraction form
    3,524.48/5,286.75 = 1,187.12/x
  3. Step 3: Cross multiply
    3,524.48x = 5,286.75 × 1,187.12
  4. Step 4: Simplify right side
    3,524.48x = 6,275,980.23
  5. Step 5: Solve for x
    x = 6,275,980.23/3,524.48
  6. Step 6: Final answer
    x = 1,780.69

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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.