Home / 2,790.63-4,186.44-1,148.34

Finding the Fourth Proportional to 2,790.63, 4,186.44 and 1,148.34

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Solution

The fourth proportional to 2,790.63, 4,186.44 and 1,148.34 is: 1,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,790.63 : 4,186.44 = 1,148.34 : x
  2. Step 2: Convert to fraction form
    2,790.63/4,186.44 = 1,148.34/x
  3. Step 3: Cross multiply
    2,790.63x = 4,186.44 × 1,148.34
  4. Step 4: Simplify right side
    2,790.63x = 4,807,456.51
  5. Step 5: Solve for x
    x = 4,807,456.51/2,790.63
  6. Step 6: Final answer
    x = 1,722.71

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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.