Home / 2,993.60-4,131.06-1,667.28

Finding the Fourth Proportional to 2,993.60, 4,131.06 and 1,667.28

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Solution

The fourth proportional to 2,993.60, 4,131.06 and 1,667.28 is: 2,300.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.60 : 4,131.06 = 1,667.28 : x
  2. Step 2: Convert to fraction form
    2,993.60/4,131.06 = 1,667.28/x
  3. Step 3: Cross multiply
    2,993.60x = 4,131.06 × 1,667.28
  4. Step 4: Simplify right side
    2,993.60x = 6,887,633.72
  5. Step 5: Solve for x
    x = 6,887,633.72/2,993.60
  6. Step 6: Final answer
    x = 2,300.79

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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.