Home / 2,625.35-3,934.51-1,391.45

Finding the Fourth Proportional to 2,625.35, 3,934.51 and 1,391.45

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Solution

The fourth proportional to 2,625.35, 3,934.51 and 1,391.45 is: 2,085.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,625.35 : 3,934.51 = 1,391.45 : x
  2. Step 2: Convert to fraction form
    2,625.35/3,934.51 = 1,391.45/x
  3. Step 3: Cross multiply
    2,625.35x = 3,934.51 × 1,391.45
  4. Step 4: Simplify right side
    2,625.35x = 5,474,650.79
  5. Step 5: Solve for x
    x = 5,474,650.79/2,625.35
  6. Step 6: Final answer
    x = 2,085.31

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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.