Home / 2,351.67-3,245.30-1,289.51

Finding the Fourth Proportional to 2,351.67, 3,245.30 and 1,289.51

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Solution

The fourth proportional to 2,351.67, 3,245.30 and 1,289.51 is: 1,779.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.67 : 3,245.30 = 1,289.51 : x
  2. Step 2: Convert to fraction form
    2,351.67/3,245.30 = 1,289.51/x
  3. Step 3: Cross multiply
    2,351.67x = 3,245.30 × 1,289.51
  4. Step 4: Simplify right side
    2,351.67x = 4,184,824.13
  5. Step 5: Solve for x
    x = 4,184,824.13/2,351.67
  6. Step 6: Final answer
    x = 1,779.51

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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.