Home / 2,114.39-2,917.49-1,230.48

Finding the Fourth Proportional to 2,114.39, 2,917.49 and 1,230.48

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Solution

The fourth proportional to 2,114.39, 2,917.49 and 1,230.48 is: 1,697.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,114.39 : 2,917.49 = 1,230.48 : x
  2. Step 2: Convert to fraction form
    2,114.39/2,917.49 = 1,230.48/x
  3. Step 3: Cross multiply
    2,114.39x = 2,917.49 × 1,230.48
  4. Step 4: Simplify right side
    2,114.39x = 3,589,916.17
  5. Step 5: Solve for x
    x = 3,589,916.17/2,114.39
  6. Step 6: Final answer
    x = 1,697.85

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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.