Home / 1,857.96-2,781.45-1,777.77

Finding the Fourth Proportional to 1,857.96, 2,781.45 and 1,777.77

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Solution

The fourth proportional to 1,857.96, 2,781.45 and 1,777.77 is: 2,661.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,857.96 : 2,781.45 = 1,777.77 : x
  2. Step 2: Convert to fraction form
    1,857.96/2,781.45 = 1,777.77/x
  3. Step 3: Cross multiply
    1,857.96x = 2,781.45 × 1,777.77
  4. Step 4: Simplify right side
    1,857.96x = 4,944,778.37
  5. Step 5: Solve for x
    x = 4,944,778.37/1,857.96
  6. Step 6: Final answer
    x = 2,661.40

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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.