Home / 2,688.45-4,032.67-1,763.79

Finding the Fourth Proportional to 2,688.45, 4,032.67 and 1,763.79

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Solution

The fourth proportional to 2,688.45, 4,032.67 and 1,763.79 is: 2,645.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,688.45 : 4,032.67 = 1,763.79 : x
  2. Step 2: Convert to fraction form
    2,688.45/4,032.67 = 1,763.79/x
  3. Step 3: Cross multiply
    2,688.45x = 4,032.67 × 1,763.79
  4. Step 4: Simplify right side
    2,688.45x = 7,112,787.43
  5. Step 5: Solve for x
    x = 7,112,787.43/2,688.45
  6. Step 6: Final answer
    x = 2,645.68

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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.