Home / 3,122.18-4,684.06-1,478.29

Finding the Fourth Proportional to 3,122.18, 4,684.06 and 1,478.29

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Solution

The fourth proportional to 3,122.18, 4,684.06 and 1,478.29 is: 2,217.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,122.18 : 4,684.06 = 1,478.29 : x
  2. Step 2: Convert to fraction form
    3,122.18/4,684.06 = 1,478.29/x
  3. Step 3: Cross multiply
    3,122.18x = 4,684.06 × 1,478.29
  4. Step 4: Simplify right side
    3,122.18x = 6,924,399.06
  5. Step 5: Solve for x
    x = 6,924,399.06/3,122.18
  6. Step 6: Final answer
    x = 2,217.81

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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.