Home / 2,968.40-4,095.10-1,788.79

Finding the Fourth Proportional to 2,968.40, 4,095.10 and 1,788.79

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Solution

The fourth proportional to 2,968.40, 4,095.10 and 1,788.79 is: 2,467.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.40 : 4,095.10 = 1,788.79 : x
  2. Step 2: Convert to fraction form
    2,968.40/4,095.10 = 1,788.79/x
  3. Step 3: Cross multiply
    2,968.40x = 4,095.10 × 1,788.79
  4. Step 4: Simplify right side
    2,968.40x = 7,325,273.93
  5. Step 5: Solve for x
    x = 7,325,273.93/2,968.40
  6. Step 6: Final answer
    x = 2,467.75

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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.