Home / 2,837.90-3,915.05-1,892.79

Finding the Fourth Proportional to 2,837.90, 3,915.05 and 1,892.79

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Solution

The fourth proportional to 2,837.90, 3,915.05 and 1,892.79 is: 2,611.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,837.90 : 3,915.05 = 1,892.79 : x
  2. Step 2: Convert to fraction form
    2,837.90/3,915.05 = 1,892.79/x
  3. Step 3: Cross multiply
    2,837.90x = 3,915.05 × 1,892.79
  4. Step 4: Simplify right side
    2,837.90x = 7,410,358.03
  5. Step 5: Solve for x
    x = 7,410,358.03/2,837.90
  6. Step 6: Final answer
    x = 2,611.22

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1.5x scale

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.