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Finding the Fourth Proportional to 3,358.99, 5,038.77 and 893.81

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Solution

The fourth proportional to 3,358.99, 5,038.77 and 893.81 is: 1,340.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358.99 : 5,038.77 = 893.81 : x
  2. Step 2: Convert to fraction form
    3,358.99/5,038.77 = 893.81/x
  3. Step 3: Cross multiply
    3,358.99x = 5,038.77 × 893.81
  4. Step 4: Simplify right side
    3,358.99x = 4,503,694.46
  5. Step 5: Solve for x
    x = 4,503,694.46/3,358.99
  6. Step 6: Final answer
    x = 1,340.79

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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.