Home / 2,840.29-4,260.43-1,281.03

Finding the Fourth Proportional to 2,840.29, 4,260.43 and 1,281.03

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Solution

The fourth proportional to 2,840.29, 4,260.43 and 1,281.03 is: 1,921.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.29 : 4,260.43 = 1,281.03 : x
  2. Step 2: Convert to fraction form
    2,840.29/4,260.43 = 1,281.03/x
  3. Step 3: Cross multiply
    2,840.29x = 4,260.43 × 1,281.03
  4. Step 4: Simplify right side
    2,840.29x = 5,457,724.27
  5. Step 5: Solve for x
    x = 5,457,724.27/2,840.29
  6. Step 6: Final answer
    x = 1,921.54

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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.