Home / 1,786.20-2,685.06-1,777.56

Finding the Fourth Proportional to 1,786.20, 2,685.06 and 1,777.56

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Solution

The fourth proportional to 1,786.20, 2,685.06 and 1,777.56 is: 2,672.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,786.20 : 2,685.06 = 1,777.56 : x
  2. Step 2: Convert to fraction form
    1,786.20/2,685.06 = 1,777.56/x
  3. Step 3: Cross multiply
    1,786.20x = 2,685.06 × 1,777.56
  4. Step 4: Simplify right side
    1,786.20x = 4,772,855.25
  5. Step 5: Solve for x
    x = 4,772,855.25/1,786.20
  6. Step 6: Final answer
    x = 2,672.07

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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.