Home / 2,168.04-2,991.66-1,283.67

Finding the Fourth Proportional to 2,168.04, 2,991.66 and 1,283.67

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Solution

The fourth proportional to 2,168.04, 2,991.66 and 1,283.67 is: 1,771.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,168.04 : 2,991.66 = 1,283.67 : x
  2. Step 2: Convert to fraction form
    2,168.04/2,991.66 = 1,283.67/x
  3. Step 3: Cross multiply
    2,168.04x = 2,991.66 × 1,283.67
  4. Step 4: Simplify right side
    2,168.04x = 3,840,304.19
  5. Step 5: Solve for x
    x = 3,840,304.19/2,168.04
  6. Step 6: Final answer
    x = 1,771.33

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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.