Home / 3,122.28-4,684.77-1,661.06

Finding the Fourth Proportional to 3,122.28, 4,684.77 and 1,661.06

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Solution

The fourth proportional to 3,122.28, 4,684.77 and 1,661.06 is: 2,492.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.28 : 4,684.77 = 1,661.06 : x
  2. Step 2: Convert to fraction form
    3,122.28/4,684.77 = 1,661.06/x
  3. Step 3: Cross multiply
    3,122.28x = 4,684.77 × 1,661.06
  4. Step 4: Simplify right side
    3,122.28x = 7,781,695.77
  5. Step 5: Solve for x
    x = 7,781,695.77/3,122.28
  6. Step 6: Final answer
    x = 2,492.31

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1.5x scale

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.