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Finding the Fourth Proportional to 1,389.03, 2,083.08 and 464.33

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Solution

The fourth proportional to 1,389.03, 2,083.08 and 464.33 is: 696.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389.03 : 2,083.08 = 464.33 : x
  2. Step 2: Convert to fraction form
    1,389.03/2,083.08 = 464.33/x
  3. Step 3: Cross multiply
    1,389.03x = 2,083.08 × 464.33
  4. Step 4: Simplify right side
    1,389.03x = 967,223.80
  5. Step 5: Solve for x
    x = 967,223.80/1,389.03
  6. Step 6: Final answer
    x = 696.33

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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.