Home / 4,431.12-6,112.90-2,859.72

Finding the Fourth Proportional to 4,431.12, 6,112.90 and 2,859.72

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Solution

The fourth proportional to 4,431.12, 6,112.90 and 2,859.72 is: 3,945.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,431.12 : 6,112.90 = 2,859.72 : x
  2. Step 2: Convert to fraction form
    4,431.12/6,112.90 = 2,859.72/x
  3. Step 3: Cross multiply
    4,431.12x = 6,112.90 × 2,859.72
  4. Step 4: Simplify right side
    4,431.12x = 17,481,182.39
  5. Step 5: Solve for x
    x = 17,481,182.39/4,431.12
  6. Step 6: Final answer
    x = 3,945.09

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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.