Home / 3,946.68-5,447.40-2,245.68

Finding the Fourth Proportional to 3,946.68, 5,447.40 and 2,245.68

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Solution

The fourth proportional to 3,946.68, 5,447.40 and 2,245.68 is: 3,099.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,946.68 : 5,447.40 = 2,245.68 : x
  2. Step 2: Convert to fraction form
    3,946.68/5,447.40 = 2,245.68/x
  3. Step 3: Cross multiply
    3,946.68x = 5,447.40 × 2,245.68
  4. Step 4: Simplify right side
    3,946.68x = 12,233,117.23
  5. Step 5: Solve for x
    x = 12,233,117.23/3,946.68
  6. Step 6: Final answer
    x = 3,099.60

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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.