Home / 4,917.48-6,786.60-2,821.56

Finding the Fourth Proportional to 4,917.48, 6,786.60 and 2,821.56

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Solution

The fourth proportional to 4,917.48, 6,786.60 and 2,821.56 is: 3,894.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,917.48 : 6,786.60 = 2,821.56 : x
  2. Step 2: Convert to fraction form
    4,917.48/6,786.60 = 2,821.56/x
  3. Step 3: Cross multiply
    4,917.48x = 6,786.60 × 2,821.56
  4. Step 4: Simplify right side
    4,917.48x = 19,148,799.10
  5. Step 5: Solve for x
    x = 19,148,799.10/4,917.48
  6. Step 6: Final answer
    x = 3,894.03

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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.