Home / 2,351.93-3,245.62-1,289.65

Finding the Fourth Proportional to 2,351.93, 3,245.62 and 1,289.65

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Solution

The fourth proportional to 2,351.93, 3,245.62 and 1,289.65 is: 1,779.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,351.93 : 3,245.62 = 1,289.65 : x
  2. Step 2: Convert to fraction form
    2,351.93/3,245.62 = 1,289.65/x
  3. Step 3: Cross multiply
    2,351.93x = 3,245.62 × 1,289.65
  4. Step 4: Simplify right side
    2,351.93x = 4,185,713.83
  5. Step 5: Solve for x
    x = 4,185,713.83/2,351.93
  6. Step 6: Final answer
    x = 1,779.69

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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.