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Finding the Fourth Proportional to 1,626.58, 2,436.68 and 893.94

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Solution

The fourth proportional to 1,626.58, 2,436.68 and 893.94 is: 1,339.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,626.58 : 2,436.68 = 893.94 : x
  2. Step 2: Convert to fraction form
    1,626.58/2,436.68 = 893.94/x
  3. Step 3: Cross multiply
    1,626.58x = 2,436.68 × 893.94
  4. Step 4: Simplify right side
    1,626.58x = 2,178,238.82
  5. Step 5: Solve for x
    x = 2,178,238.82/1,626.58
  6. Step 6: Final answer
    x = 1,339.15

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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.