Home / 2,814.47-4,217.23-1,886.61

Finding the Fourth Proportional to 2,814.47, 4,217.23 and 1,886.61

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Solution

The fourth proportional to 2,814.47, 4,217.23 and 1,886.61 is: 2,826.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,814.47 : 4,217.23 = 1,886.61 : x
  2. Step 2: Convert to fraction form
    2,814.47/4,217.23 = 1,886.61/x
  3. Step 3: Cross multiply
    2,814.47x = 4,217.23 × 1,886.61
  4. Step 4: Simplify right side
    2,814.47x = 7,956,268.29
  5. Step 5: Solve for x
    x = 7,956,268.29/2,814.47
  6. Step 6: Final answer
    x = 2,826.92

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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.