Home / 2,945.21-4,064.40-1,766.28

Finding the Fourth Proportional to 2,945.21, 4,064.40 and 1,766.28

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Solution

The fourth proportional to 2,945.21, 4,064.40 and 1,766.28 is: 2,437.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,945.21 : 4,064.40 = 1,766.28 : x
  2. Step 2: Convert to fraction form
    2,945.21/4,064.40 = 1,766.28/x
  3. Step 3: Cross multiply
    2,945.21x = 4,064.40 × 1,766.28
  4. Step 4: Simplify right side
    2,945.21x = 7,178,868.43
  5. Step 5: Solve for x
    x = 7,178,868.43/2,945.21
  6. Step 6: Final answer
    x = 2,437.47

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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.