Home / 2,858.17-4,285.41-1,214.28

Finding the Fourth Proportional to 2,858.17, 4,285.41 and 1,214.28

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Solution

The fourth proportional to 2,858.17, 4,285.41 and 1,214.28 is: 1,820.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.17 : 4,285.41 = 1,214.28 : x
  2. Step 2: Convert to fraction form
    2,858.17/4,285.41 = 1,214.28/x
  3. Step 3: Cross multiply
    2,858.17x = 4,285.41 × 1,214.28
  4. Step 4: Simplify right side
    2,858.17x = 5,203,687.65
  5. Step 5: Solve for x
    x = 5,203,687.65/2,858.17
  6. Step 6: Final answer
    x = 1,820.64

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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.