Home / 5,125.22-7,072.21-2,887.03

Finding the Fourth Proportional to 5,125.22, 7,072.21 and 2,887.03

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Solution

The fourth proportional to 5,125.22, 7,072.21 and 2,887.03 is: 3,983.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,125.22 : 7,072.21 = 2,887.03 : x
  2. Step 2: Convert to fraction form
    5,125.22/7,072.21 = 2,887.03/x
  3. Step 3: Cross multiply
    5,125.22x = 7,072.21 × 2,887.03
  4. Step 4: Simplify right side
    5,125.22x = 20,417,682.44
  5. Step 5: Solve for x
    x = 20,417,682.44/5,125.22
  6. Step 6: Final answer
    x = 3,983.77

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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.