Home / 2,018.19-2,784.44-1,178.77

Finding the Fourth Proportional to 2,018.19, 2,784.44 and 1,178.77

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Solution

The fourth proportional to 2,018.19, 2,784.44 and 1,178.77 is: 1,626.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,018.19 : 2,784.44 = 1,178.77 : x
  2. Step 2: Convert to fraction form
    2,018.19/2,784.44 = 1,178.77/x
  3. Step 3: Cross multiply
    2,018.19x = 2,784.44 × 1,178.77
  4. Step 4: Simplify right side
    2,018.19x = 3,282,214.34
  5. Step 5: Solve for x
    x = 3,282,214.34/2,018.19
  6. Step 6: Final answer
    x = 1,626.32

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Half scale
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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.