Home / 1,802.78-2,488.07-1,057.03

Finding the Fourth Proportional to 1,802.78, 2,488.07 and 1,057.03

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Solution

The fourth proportional to 1,802.78, 2,488.07 and 1,057.03 is: 1,458.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.78 : 2,488.07 = 1,057.03 : x
  2. Step 2: Convert to fraction form
    1,802.78/2,488.07 = 1,057.03/x
  3. Step 3: Cross multiply
    1,802.78x = 2,488.07 × 1,057.03
  4. Step 4: Simplify right side
    1,802.78x = 2,629,961.05
  5. Step 5: Solve for x
    x = 2,629,961.05/1,802.78
  6. Step 6: Final answer
    x = 1,458.84

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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.