Home / 2,730.12-4,095.16-782.33

Finding the Fourth Proportional to 2,730.12, 4,095.16 and 782.33

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Solution

The fourth proportional to 2,730.12, 4,095.16 and 782.33 is: 1,173.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,730.12 : 4,095.16 = 782.33 : x
  2. Step 2: Convert to fraction form
    2,730.12/4,095.16 = 782.33/x
  3. Step 3: Cross multiply
    2,730.12x = 4,095.16 × 782.33
  4. Step 4: Simplify right side
    2,730.12x = 3,203,744.09
  5. Step 5: Solve for x
    x = 3,203,744.09/2,730.12
  6. Step 6: Final answer
    x = 1,173.48

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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.