Home / 2,167.63-2,991.33-1,236.31

Finding the Fourth Proportional to 2,167.63, 2,991.33 and 1,236.31

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Solution

The fourth proportional to 2,167.63, 2,991.33 and 1,236.31 is: 1,706.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167.63 : 2,991.33 = 1,236.31 : x
  2. Step 2: Convert to fraction form
    2,167.63/2,991.33 = 1,236.31/x
  3. Step 3: Cross multiply
    2,167.63x = 2,991.33 × 1,236.31
  4. Step 4: Simplify right side
    2,167.63x = 3,698,211.19
  5. Step 5: Solve for x
    x = 3,698,211.19/2,167.63
  6. Step 6: Final answer
    x = 1,706.11

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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.