Home / 2,993.74-4,131.20-1,667.21

Finding the Fourth Proportional to 2,993.74, 4,131.20 and 1,667.21

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Solution

The fourth proportional to 2,993.74, 4,131.20 and 1,667.21 is: 2,300.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.74 : 4,131.20 = 1,667.21 : x
  2. Step 2: Convert to fraction form
    2,993.74/4,131.20 = 1,667.21/x
  3. Step 3: Cross multiply
    2,993.74x = 4,131.20 × 1,667.21
  4. Step 4: Simplify right side
    2,993.74x = 6,887,577.95
  5. Step 5: Solve for x
    x = 6,887,577.95/2,993.74
  6. Step 6: Final answer
    x = 2,300.66

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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.