Home / 2,625.70-3,936.12-1,325.66

Finding the Fourth Proportional to 2,625.70, 3,936.12 and 1,325.66

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Solution

The fourth proportional to 2,625.70, 3,936.12 and 1,325.66 is: 1,987.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.70 : 3,936.12 = 1,325.66 : x
  2. Step 2: Convert to fraction form
    2,625.70/3,936.12 = 1,325.66/x
  3. Step 3: Cross multiply
    2,625.70x = 3,936.12 × 1,325.66
  4. Step 4: Simplify right side
    2,625.70x = 5,217,956.84
  5. Step 5: Solve for x
    x = 5,217,956.84/2,625.70
  6. Step 6: Final answer
    x = 1,987.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.