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Finding the Fourth Proportional to 1,748.94, 2,624.32 and 774.81

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Solution

The fourth proportional to 1,748.94, 2,624.32 and 774.81 is: 1,162.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.94 : 2,624.32 = 774.81 : x
  2. Step 2: Convert to fraction form
    1,748.94/2,624.32 = 774.81/x
  3. Step 3: Cross multiply
    1,748.94x = 2,624.32 × 774.81
  4. Step 4: Simplify right side
    1,748.94x = 2,033,355.94
  5. Step 5: Solve for x
    x = 2,033,355.94/1,748.94
  6. Step 6: Final answer
    x = 1,162.62

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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.