Home / 2,218.35-3,321.69-1,777.51

Finding the Fourth Proportional to 2,218.35, 3,321.69 and 1,777.51

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Solution

The fourth proportional to 2,218.35, 3,321.69 and 1,777.51 is: 2,661.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.35 : 3,321.69 = 1,777.51 : x
  2. Step 2: Convert to fraction form
    2,218.35/3,321.69 = 1,777.51/x
  3. Step 3: Cross multiply
    2,218.35x = 3,321.69 × 1,777.51
  4. Step 4: Simplify right side
    2,218.35x = 5,904,337.19
  5. Step 5: Solve for x
    x = 5,904,337.19/2,218.35
  6. Step 6: Final answer
    x = 2,661.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.