Home / 1,792.86-2,685.32-1,378.96

Finding the Fourth Proportional to 1,792.86, 2,685.32 and 1,378.96

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Solution

The fourth proportional to 1,792.86, 2,685.32 and 1,378.96 is: 2,065.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,792.86 : 2,685.32 = 1,378.96 : x
  2. Step 2: Convert to fraction form
    1,792.86/2,685.32 = 1,378.96/x
  3. Step 3: Cross multiply
    1,792.86x = 2,685.32 × 1,378.96
  4. Step 4: Simplify right side
    1,792.86x = 3,702,948.87
  5. Step 5: Solve for x
    x = 3,702,948.87/1,792.86
  6. Step 6: Final answer
    x = 2,065.39

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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.