Home / 3,222.51-4,447.02-1,806.21

Finding the Fourth Proportional to 3,222.51, 4,447.02 and 1,806.21

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Solution

The fourth proportional to 3,222.51, 4,447.02 and 1,806.21 is: 2,492.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.51 : 4,447.02 = 1,806.21 : x
  2. Step 2: Convert to fraction form
    3,222.51/4,447.02 = 1,806.21/x
  3. Step 3: Cross multiply
    3,222.51x = 4,447.02 × 1,806.21
  4. Step 4: Simplify right side
    3,222.51x = 8,032,251.99
  5. Step 5: Solve for x
    x = 8,032,251.99/3,222.51
  6. Step 6: Final answer
    x = 2,492.55

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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.