Home / 6,945.71-10,418.20-1,948.43

Finding the Fourth Proportional to 6,945.71, 10,418.20 and 1,948.43

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Solution

The fourth proportional to 6,945.71, 10,418.20 and 1,948.43 is: 2,922.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,945.71 : 10,418.20 = 1,948.43 : x
  2. Step 2: Convert to fraction form
    6,945.71/10,418.20 = 1,948.43/x
  3. Step 3: Cross multiply
    6,945.71x = 10,418.20 × 1,948.43
  4. Step 4: Simplify right side
    6,945.71x = 20,299,106.42
  5. Step 5: Solve for x
    x = 20,299,106.42/6,945.71
  6. Step 6: Final answer
    x = 2,922.54

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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.