Home / 2,897.44-3,999.06-1,638.56

Finding the Fourth Proportional to 2,897.44, 3,999.06 and 1,638.56

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Solution

The fourth proportional to 2,897.44, 3,999.06 and 1,638.56 is: 2,261.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.44 : 3,999.06 = 1,638.56 : x
  2. Step 2: Convert to fraction form
    2,897.44/3,999.06 = 1,638.56/x
  3. Step 3: Cross multiply
    2,897.44x = 3,999.06 × 1,638.56
  4. Step 4: Simplify right side
    2,897.44x = 6,552,709.75
  5. Step 5: Solve for x
    x = 6,552,709.75/2,897.44
  6. Step 6: Final answer
    x = 2,261.55

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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.