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Finding the Fourth Proportional to 1,825.51, 2,739.58 and 730.18

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Solution

The fourth proportional to 1,825.51, 2,739.58 and 730.18 is: 1,095.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,825.51 : 2,739.58 = 730.18 : x
  2. Step 2: Convert to fraction form
    1,825.51/2,739.58 = 730.18/x
  3. Step 3: Cross multiply
    1,825.51x = 2,739.58 × 730.18
  4. Step 4: Simplify right side
    1,825.51x = 2,000,372.83
  5. Step 5: Solve for x
    x = 2,000,372.83/1,825.51
  6. Step 6: Final answer
    x = 1,095.79

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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.