Home / 1,886.40-2,826.88-1,757.92

Finding the Fourth Proportional to 1,886.40, 2,826.88 and 1,757.92

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Solution

The fourth proportional to 1,886.40, 2,826.88 and 1,757.92 is: 2,634.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886.40 : 2,826.88 = 1,757.92 : x
  2. Step 2: Convert to fraction form
    1,886.40/2,826.88 = 1,757.92/x
  3. Step 3: Cross multiply
    1,886.40x = 2,826.88 × 1,757.92
  4. Step 4: Simplify right side
    1,886.40x = 4,969,428.89
  5. Step 5: Solve for x
    x = 4,969,428.89/1,886.40
  6. Step 6: Final answer
    x = 2,634.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.