Home / 5,218.12-7,825.23-1,707.31

Finding the Fourth Proportional to 5,218.12, 7,825.23 and 1,707.31

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Solution

The fourth proportional to 5,218.12, 7,825.23 and 1,707.31 is: 2,560.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,218.12 : 7,825.23 = 1,707.31 : x
  2. Step 2: Convert to fraction form
    5,218.12/7,825.23 = 1,707.31/x
  3. Step 3: Cross multiply
    5,218.12x = 7,825.23 × 1,707.31
  4. Step 4: Simplify right side
    5,218.12x = 13,360,093.43
  5. Step 5: Solve for x
    x = 13,360,093.43/5,218.12
  6. Step 6: Final answer
    x = 2,560.33

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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.