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Finding the Fourth Proportional to 1,491.00, 2,056.81 and 893.01

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Solution

The fourth proportional to 1,491.00, 2,056.81 and 893.01 is: 1,231.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,491.00 : 2,056.81 = 893.01 : x
  2. Step 2: Convert to fraction form
    1,491.00/2,056.81 = 893.01/x
  3. Step 3: Cross multiply
    1,491.00x = 2,056.81 × 893.01
  4. Step 4: Simplify right side
    1,491.00x = 1,836,759.05
  5. Step 5: Solve for x
    x = 1,836,759.05/1,491.00
  6. Step 6: Final answer
    x = 1,231.90

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Why These Related Problems?

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