Home / 2,722.26-3,748.28-2,127.16

Finding the Fourth Proportional to 2,722.26, 3,748.28 and 2,127.16

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Solution

The fourth proportional to 2,722.26, 3,748.28 and 2,127.16 is: 2,928.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.26 : 3,748.28 = 2,127.16 : x
  2. Step 2: Convert to fraction form
    2,722.26/3,748.28 = 2,127.16/x
  3. Step 3: Cross multiply
    2,722.26x = 3,748.28 × 2,127.16
  4. Step 4: Simplify right side
    2,722.26x = 7,973,185.33
  5. Step 5: Solve for x
    x = 7,973,185.33/2,722.26
  6. Step 6: Final answer
    x = 2,928.89

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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.