Home / 2,991.36-4,127.98-1,665.02

Finding the Fourth Proportional to 2,991.36, 4,127.98 and 1,665.02

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Solution

The fourth proportional to 2,991.36, 4,127.98 and 1,665.02 is: 2,297.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991.36 : 4,127.98 = 1,665.02 : x
  2. Step 2: Convert to fraction form
    2,991.36/4,127.98 = 1,665.02/x
  3. Step 3: Cross multiply
    2,991.36x = 4,127.98 × 1,665.02
  4. Step 4: Simplify right side
    2,991.36x = 6,873,169.26
  5. Step 5: Solve for x
    x = 6,873,169.26/2,991.36
  6. Step 6: Final answer
    x = 2,297.67

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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.