Home / 2,993.78-4,131.23-1,667.58

Finding the Fourth Proportional to 2,993.78, 4,131.23 and 1,667.58

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Solution

The fourth proportional to 2,993.78, 4,131.23 and 1,667.58 is: 2,301.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993.78 : 4,131.23 = 1,667.58 : x
  2. Step 2: Convert to fraction form
    2,993.78/4,131.23 = 1,667.58/x
  3. Step 3: Cross multiply
    2,993.78x = 4,131.23 × 1,667.58
  4. Step 4: Simplify right side
    2,993.78x = 6,889,148.19
  5. Step 5: Solve for x
    x = 6,889,148.19/2,993.78
  6. Step 6: Final answer
    x = 2,301.16

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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.