Home / 3,913.98-5,401.22-2,235.90

Finding the Fourth Proportional to 3,913.98, 5,401.22 and 2,235.90

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Solution

The fourth proportional to 3,913.98, 5,401.22 and 2,235.90 is: 3,085.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,913.98 : 5,401.22 = 2,235.90 : x
  2. Step 2: Convert to fraction form
    3,913.98/5,401.22 = 2,235.90/x
  3. Step 3: Cross multiply
    3,913.98x = 5,401.22 × 2,235.90
  4. Step 4: Simplify right side
    3,913.98x = 12,076,587.80
  5. Step 5: Solve for x
    x = 12,076,587.80/3,913.98
  6. Step 6: Final answer
    x = 3,085.50

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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.