Home / 2,838.31-3,915.21-1,954.06

Finding the Fourth Proportional to 2,838.31, 3,915.21 and 1,954.06

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Solution

The fourth proportional to 2,838.31, 3,915.21 and 1,954.06 is: 2,695.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.31 : 3,915.21 = 1,954.06 : x
  2. Step 2: Convert to fraction form
    2,838.31/3,915.21 = 1,954.06/x
  3. Step 3: Cross multiply
    2,838.31x = 3,915.21 × 1,954.06
  4. Step 4: Simplify right side
    2,838.31x = 7,650,555.25
  5. Step 5: Solve for x
    x = 7,650,555.25/2,838.31
  6. Step 6: Final answer
    x = 2,695.46

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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.