Home / 1,807.03-2,493.68-979.03

Finding the Fourth Proportional to 1,807.03, 2,493.68 and 979.03

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Solution

The fourth proportional to 1,807.03, 2,493.68 and 979.03 is: 1,351.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,807.03 : 2,493.68 = 979.03 : x
  2. Step 2: Convert to fraction form
    1,807.03/2,493.68 = 979.03/x
  3. Step 3: Cross multiply
    1,807.03x = 2,493.68 × 979.03
  4. Step 4: Simplify right side
    1,807.03x = 2,441,380.07
  5. Step 5: Solve for x
    x = 2,441,380.07/1,807.03
  6. Step 6: Final answer
    x = 1,351.05

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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.