Home / 2,431.49-3,647.81-788.04

Finding the Fourth Proportional to 2,431.49, 3,647.81 and 788.04

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Solution

The fourth proportional to 2,431.49, 3,647.81 and 788.04 is: 1,182.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,431.49 : 3,647.81 = 788.04 : x
  2. Step 2: Convert to fraction form
    2,431.49/3,647.81 = 788.04/x
  3. Step 3: Cross multiply
    2,431.49x = 3,647.81 × 788.04
  4. Step 4: Simplify right side
    2,431.49x = 2,874,616.06
  5. Step 5: Solve for x
    x = 2,874,616.06/2,431.49
  6. Step 6: Final answer
    x = 1,182.24

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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.