Home / 2,114.45-2,918.43-1,230.39

Finding the Fourth Proportional to 2,114.45, 2,918.43 and 1,230.39

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Solution

The fourth proportional to 2,114.45, 2,918.43 and 1,230.39 is: 1,698.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.45 : 2,918.43 = 1,230.39 : x
  2. Step 2: Convert to fraction form
    2,114.45/2,918.43 = 1,230.39/x
  3. Step 3: Cross multiply
    2,114.45x = 2,918.43 × 1,230.39
  4. Step 4: Simplify right side
    2,114.45x = 3,590,807.09
  5. Step 5: Solve for x
    x = 3,590,807.09/2,114.45
  6. Step 6: Final answer
    x = 1,698.22

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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.