Home / 2,917.86-4,026.31-1,738.70

Finding the Fourth Proportional to 2,917.86, 4,026.31 and 1,738.70

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Solution

The fourth proportional to 2,917.86, 4,026.31 and 1,738.70 is: 2,399.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,917.86 : 4,026.31 = 1,738.70 : x
  2. Step 2: Convert to fraction form
    2,917.86/4,026.31 = 1,738.70/x
  3. Step 3: Cross multiply
    2,917.86x = 4,026.31 × 1,738.70
  4. Step 4: Simplify right side
    2,917.86x = 7,000,535.82
  5. Step 5: Solve for x
    x = 7,000,535.82/2,917.86
  6. Step 6: Final answer
    x = 2,399.21

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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.