Home / 3,125.12-4,308.32-2,239.32

Finding the Fourth Proportional to 3,125.12, 4,308.32 and 2,239.32

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Solution

The fourth proportional to 3,125.12, 4,308.32 and 2,239.32 is: 3,087.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,125.12 : 4,308.32 = 2,239.32 : x
  2. Step 2: Convert to fraction form
    3,125.12/4,308.32 = 2,239.32/x
  3. Step 3: Cross multiply
    3,125.12x = 4,308.32 × 2,239.32
  4. Step 4: Simplify right side
    3,125.12x = 9,647,707.14
  5. Step 5: Solve for x
    x = 9,647,707.14/3,125.12
  6. Step 6: Final answer
    x = 3,087.15

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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.