Home / 2,038.11-2,812.57-1,106.61

Finding the Fourth Proportional to 2,038.11, 2,812.57 and 1,106.61

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Solution

The fourth proportional to 2,038.11, 2,812.57 and 1,106.61 is: 1,527.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,038.11 : 2,812.57 = 1,106.61 : x
  2. Step 2: Convert to fraction form
    2,038.11/2,812.57 = 1,106.61/x
  3. Step 3: Cross multiply
    2,038.11x = 2,812.57 × 1,106.61
  4. Step 4: Simplify right side
    2,038.11x = 3,112,418.09
  5. Step 5: Solve for x
    x = 3,112,418.09/2,038.11
  6. Step 6: Final answer
    x = 1,527.11

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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.