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Finding the Fourth Proportional to 1,363.94, 1,882.26 and 774.35

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Solution

The fourth proportional to 1,363.94, 1,882.26 and 774.35 is: 1,068.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,363.94 : 1,882.26 = 774.35 : x
  2. Step 2: Convert to fraction form
    1,363.94/1,882.26 = 774.35/x
  3. Step 3: Cross multiply
    1,363.94x = 1,882.26 × 774.35
  4. Step 4: Simplify right side
    1,363.94x = 1,457,528.03
  5. Step 5: Solve for x
    x = 1,457,528.03/1,363.94
  6. Step 6: Final answer
    x = 1,068.62

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.