Home / 2,790.03-4,181.93-1,326.11

Finding the Fourth Proportional to 2,790.03, 4,181.93 and 1,326.11

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Solution

The fourth proportional to 2,790.03, 4,181.93 and 1,326.11 is: 1,987.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.03 : 4,181.93 = 1,326.11 : x
  2. Step 2: Convert to fraction form
    2,790.03/4,181.93 = 1,326.11/x
  3. Step 3: Cross multiply
    2,790.03x = 4,181.93 × 1,326.11
  4. Step 4: Simplify right side
    2,790.03x = 5,545,699.19
  5. Step 5: Solve for x
    x = 5,545,699.19/2,790.03
  6. Step 6: Final answer
    x = 1,987.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.