Home / 3,222.90-4,447.25-1,897.02

Finding the Fourth Proportional to 3,222.90, 4,447.25 and 1,897.02

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Solution

The fourth proportional to 3,222.90, 4,447.25 and 1,897.02 is: 2,617.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.90 : 4,447.25 = 1,897.02 : x
  2. Step 2: Convert to fraction form
    3,222.90/4,447.25 = 1,897.02/x
  3. Step 3: Cross multiply
    3,222.90x = 4,447.25 × 1,897.02
  4. Step 4: Simplify right side
    3,222.90x = 8,436,522.20
  5. Step 5: Solve for x
    x = 8,436,522.20/3,222.90
  6. Step 6: Final answer
    x = 2,617.68

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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.