Home / 2,945.20-4,064.70-1,766.56

Finding the Fourth Proportional to 2,945.20, 4,064.70 and 1,766.56

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Solution

The fourth proportional to 2,945.20, 4,064.70 and 1,766.56 is: 2,438.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.20 : 4,064.70 = 1,766.56 : x
  2. Step 2: Convert to fraction form
    2,945.20/4,064.70 = 1,766.56/x
  3. Step 3: Cross multiply
    2,945.20x = 4,064.70 × 1,766.56
  4. Step 4: Simplify right side
    2,945.20x = 7,180,536.43
  5. Step 5: Solve for x
    x = 7,180,536.43/2,945.20
  6. Step 6: Final answer
    x = 2,438.05

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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.