Home / 2,140.12-2,952.39-1,208.62

Finding the Fourth Proportional to 2,140.12, 2,952.39 and 1,208.62

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Solution

The fourth proportional to 2,140.12, 2,952.39 and 1,208.62 is: 1,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140.12 : 2,952.39 = 1,208.62 : x
  2. Step 2: Convert to fraction form
    2,140.12/2,952.39 = 1,208.62/x
  3. Step 3: Cross multiply
    2,140.12x = 2,952.39 × 1,208.62
  4. Step 4: Simplify right side
    2,140.12x = 3,568,317.60
  5. Step 5: Solve for x
    x = 3,568,317.60/2,140.12
  6. Step 6: Final answer
    x = 1,667.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.