Home / 3,851.08-5,308.32-2,729.68

Finding the Fourth Proportional to 3,851.08, 5,308.32 and 2,729.68

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Solution

The fourth proportional to 3,851.08, 5,308.32 and 2,729.68 is: 3,762.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,851.08 : 5,308.32 = 2,729.68 : x
  2. Step 2: Convert to fraction form
    3,851.08/5,308.32 = 2,729.68/x
  3. Step 3: Cross multiply
    3,851.08x = 5,308.32 × 2,729.68
  4. Step 4: Simplify right side
    3,851.08x = 14,490,014.94
  5. Step 5: Solve for x
    x = 14,490,014.94/3,851.08
  6. Step 6: Final answer
    x = 3,762.58

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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.