Home / 2,840.43-3,918.71-1,763.20

Finding the Fourth Proportional to 2,840.43, 3,918.71 and 1,763.20

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Solution

The fourth proportional to 2,840.43, 3,918.71 and 1,763.20 is: 2,432.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.43 : 3,918.71 = 1,763.20 : x
  2. Step 2: Convert to fraction form
    2,840.43/3,918.71 = 1,763.20/x
  3. Step 3: Cross multiply
    2,840.43x = 3,918.71 × 1,763.20
  4. Step 4: Simplify right side
    2,840.43x = 6,909,465.06
  5. Step 5: Solve for x
    x = 6,909,465.06/2,840.43
  6. Step 6: Final answer
    x = 2,432.54

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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.