Home / 2,013.60-2,777.44-1,216.56

Finding the Fourth Proportional to 2,013.60, 2,777.44 and 1,216.56

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Solution

The fourth proportional to 2,013.60, 2,777.44 and 1,216.56 is: 1,678.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,013.60 : 2,777.44 = 1,216.56 : x
  2. Step 2: Convert to fraction form
    2,013.60/2,777.44 = 1,216.56/x
  3. Step 3: Cross multiply
    2,013.60x = 2,777.44 × 1,216.56
  4. Step 4: Simplify right side
    2,013.60x = 3,378,922.41
  5. Step 5: Solve for x
    x = 3,378,922.41/2,013.60
  6. Step 6: Final answer
    x = 1,678.05

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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.