Home / 3,527.69-5,291.61-1,187.75

Finding the Fourth Proportional to 3,527.69, 5,291.61 and 1,187.75

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Solution

The fourth proportional to 3,527.69, 5,291.61 and 1,187.75 is: 1,781.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,527.69 : 5,291.61 = 1,187.75 : x
  2. Step 2: Convert to fraction form
    3,527.69/5,291.61 = 1,187.75/x
  3. Step 3: Cross multiply
    3,527.69x = 5,291.61 × 1,187.75
  4. Step 4: Simplify right side
    3,527.69x = 6,285,109.78
  5. Step 5: Solve for x
    x = 6,285,109.78/3,527.69
  6. Step 6: Final answer
    x = 1,781.65

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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.