Home / 1,376.43-2,065.41-1,068.90

Finding the Fourth Proportional to 1,376.43, 2,065.41 and 1,068.90

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Solution

The fourth proportional to 1,376.43, 2,065.41 and 1,068.90 is: 1,603.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376.43 : 2,065.41 = 1,068.90 : x
  2. Step 2: Convert to fraction form
    1,376.43/2,065.41 = 1,068.90/x
  3. Step 3: Cross multiply
    1,376.43x = 2,065.41 × 1,068.90
  4. Step 4: Simplify right side
    1,376.43x = 2,207,716.75
  5. Step 5: Solve for x
    x = 2,207,716.75/1,376.43
  6. Step 6: Final answer
    x = 1,603.94

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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.