Home / 6,283.89-9,419.26-2,122.45

Finding the Fourth Proportional to 6,283.89, 9,419.26 and 2,122.45

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Solution

The fourth proportional to 6,283.89, 9,419.26 and 2,122.45 is: 3,181.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,283.89 : 9,419.26 = 2,122.45 : x
  2. Step 2: Convert to fraction form
    6,283.89/9,419.26 = 2,122.45/x
  3. Step 3: Cross multiply
    6,283.89x = 9,419.26 × 2,122.45
  4. Step 4: Simplify right side
    6,283.89x = 19,991,908.39
  5. Step 5: Solve for x
    x = 19,991,908.39/6,283.89
  6. Step 6: Final answer
    x = 3,181.45

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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.