Home / 3,729.33-5,147.37-2,312.16

Finding the Fourth Proportional to 3,729.33, 5,147.37 and 2,312.16

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Solution

The fourth proportional to 3,729.33, 5,147.37 and 2,312.16 is: 3,191.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,729.33 : 5,147.37 = 2,312.16 : x
  2. Step 2: Convert to fraction form
    3,729.33/5,147.37 = 2,312.16/x
  3. Step 3: Cross multiply
    3,729.33x = 5,147.37 × 2,312.16
  4. Step 4: Simplify right side
    3,729.33x = 11,901,543.02
  5. Step 5: Solve for x
    x = 11,901,543.02/3,729.33
  6. Step 6: Final answer
    x = 3,191.34

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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.