Home / 2,143.41-2,957.87-1,173.27

Finding the Fourth Proportional to 2,143.41, 2,957.87 and 1,173.27

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Solution

The fourth proportional to 2,143.41, 2,957.87 and 1,173.27 is: 1,619.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,143.41 : 2,957.87 = 1,173.27 : x
  2. Step 2: Convert to fraction form
    2,143.41/2,957.87 = 1,173.27/x
  3. Step 3: Cross multiply
    2,143.41x = 2,957.87 × 1,173.27
  4. Step 4: Simplify right side
    2,143.41x = 3,470,380.13
  5. Step 5: Solve for x
    x = 3,470,380.13/2,143.41
  6. Step 6: Final answer
    x = 1,619.09

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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.