Home / 1,826.70-2,518.11-1,328.55

Finding the Fourth Proportional to 1,826.70, 2,518.11 and 1,328.55

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Solution

The fourth proportional to 1,826.70, 2,518.11 and 1,328.55 is: 1,831.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826.70 : 2,518.11 = 1,328.55 : x
  2. Step 2: Convert to fraction form
    1,826.70/2,518.11 = 1,328.55/x
  3. Step 3: Cross multiply
    1,826.70x = 2,518.11 × 1,328.55
  4. Step 4: Simplify right side
    1,826.70x = 3,345,435.04
  5. Step 5: Solve for x
    x = 3,345,435.04/1,826.70
  6. Step 6: Final answer
    x = 1,831.41

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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.