Home / 2,946.21-4,065.78-1,767.28

Finding the Fourth Proportional to 2,946.21, 4,065.78 and 1,767.28

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Solution

The fourth proportional to 2,946.21, 4,065.78 and 1,767.28 is: 2,438.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.21 : 4,065.78 = 1,767.28 : x
  2. Step 2: Convert to fraction form
    2,946.21/4,065.78 = 1,767.28/x
  3. Step 3: Cross multiply
    2,946.21x = 4,065.78 × 1,767.28
  4. Step 4: Simplify right side
    2,946.21x = 7,185,371.68
  5. Step 5: Solve for x
    x = 7,185,371.68/2,946.21
  6. Step 6: Final answer
    x = 2,438.85

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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.