Home / 2,838.65-3,917.54-1,579.80

Finding the Fourth Proportional to 2,838.65, 3,917.54 and 1,579.80

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Solution

The fourth proportional to 2,838.65, 3,917.54 and 1,579.80 is: 2,180.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,838.65 : 3,917.54 = 1,579.80 : x
  2. Step 2: Convert to fraction form
    2,838.65/3,917.54 = 1,579.80/x
  3. Step 3: Cross multiply
    2,838.65x = 3,917.54 × 1,579.80
  4. Step 4: Simplify right side
    2,838.65x = 6,188,921.79
  5. Step 5: Solve for x
    x = 6,188,921.79/2,838.65
  6. Step 6: Final answer
    x = 2,180.24

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1.5x scale

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.