Home / 3,837.90-5,296.36-2,999.58

Finding the Fourth Proportional to 3,837.90, 5,296.36 and 2,999.58

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Solution

The fourth proportional to 3,837.90, 5,296.36 and 2,999.58 is: 4,139.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,837.90 : 5,296.36 = 2,999.58 : x
  2. Step 2: Convert to fraction form
    3,837.90/5,296.36 = 2,999.58/x
  3. Step 3: Cross multiply
    3,837.90x = 5,296.36 × 2,999.58
  4. Step 4: Simplify right side
    3,837.90x = 15,886,855.53
  5. Step 5: Solve for x
    x = 15,886,855.53/3,837.90
  6. Step 6: Final answer
    x = 4,139.47

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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.