Home / 3,635.98-5,021.74-2,455

Finding the Fourth Proportional to 3,635.98, 5,021.74 and 2,455

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Solution

The fourth proportional to 3,635.98, 5,021.74 and 2,455 is: 3,390.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,635.98 : 5,021.74 = 2,455 : x
  2. Step 2: Convert to fraction form
    3,635.98/5,021.74 = 2,455/x
  3. Step 3: Cross multiply
    3,635.98x = 5,021.74 × 2,455
  4. Step 4: Simplify right side
    3,635.98x = 12,328,371.70
  5. Step 5: Solve for x
    x = 12,328,371.70/3,635.98
  6. Step 6: Final answer
    x = 3,390.66

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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.