Home / 2,664.51-3,993.45-1,690.89

Finding the Fourth Proportional to 2,664.51, 3,993.45 and 1,690.89

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Solution

The fourth proportional to 2,664.51, 3,993.45 and 1,690.89 is: 2,534.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,664.51 : 3,993.45 = 1,690.89 : x
  2. Step 2: Convert to fraction form
    2,664.51/3,993.45 = 1,690.89/x
  3. Step 3: Cross multiply
    2,664.51x = 3,993.45 × 1,690.89
  4. Step 4: Simplify right side
    2,664.51x = 6,752,484.67
  5. Step 5: Solve for x
    x = 6,752,484.67/2,664.51
  6. Step 6: Final answer
    x = 2,534.23

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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.