Home / 3,729.33-5,146.65-2,157.12

Finding the Fourth Proportional to 3,729.33, 5,146.65 and 2,157.12

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Solution

The fourth proportional to 3,729.33, 5,146.65 and 2,157.12 is: 2,976.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729.33 : 5,146.65 = 2,157.12 : x
  2. Step 2: Convert to fraction form
    3,729.33/5,146.65 = 2,157.12/x
  3. Step 3: Cross multiply
    3,729.33x = 5,146.65 × 2,157.12
  4. Step 4: Simplify right side
    3,729.33x = 11,101,941.65
  5. Step 5: Solve for x
    x = 11,101,941.65/3,729.33
  6. Step 6: Final answer
    x = 2,976.93

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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.