Home / 1,941.77-2,678.85-1,185.17

Finding the Fourth Proportional to 1,941.77, 2,678.85 and 1,185.17

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Solution

The fourth proportional to 1,941.77, 2,678.85 and 1,185.17 is: 1,635.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,941.77 : 2,678.85 = 1,185.17 : x
  2. Step 2: Convert to fraction form
    1,941.77/2,678.85 = 1,185.17/x
  3. Step 3: Cross multiply
    1,941.77x = 2,678.85 × 1,185.17
  4. Step 4: Simplify right side
    1,941.77x = 3,174,879.26
  5. Step 5: Solve for x
    x = 3,174,879.26/1,941.77
  6. Step 6: Final answer
    x = 1,635.05

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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.