Home / 5,215.83-7,823.73-1,755.51

Finding the Fourth Proportional to 5,215.83, 7,823.73 and 1,755.51

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Solution

The fourth proportional to 5,215.83, 7,823.73 and 1,755.51 is: 2,633.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,215.83 : 7,823.73 = 1,755.51 : x
  2. Step 2: Convert to fraction form
    5,215.83/7,823.73 = 1,755.51/x
  3. Step 3: Cross multiply
    5,215.83x = 7,823.73 × 1,755.51
  4. Step 4: Simplify right side
    5,215.83x = 13,734,636.25
  5. Step 5: Solve for x
    x = 13,734,636.25/5,215.83
  6. Step 6: Final answer
    x = 2,633.26

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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.