Home / 2,823.12-3,886.38-2,427.84

Finding the Fourth Proportional to 2,823.12, 3,886.38 and 2,427.84

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Solution

The fourth proportional to 2,823.12, 3,886.38 and 2,427.84 is: 3,342.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,823.12 : 3,886.38 = 2,427.84 : x
  2. Step 2: Convert to fraction form
    2,823.12/3,886.38 = 2,427.84/x
  3. Step 3: Cross multiply
    2,823.12x = 3,886.38 × 2,427.84
  4. Step 4: Simplify right side
    2,823.12x = 9,435,508.82
  5. Step 5: Solve for x
    x = 9,435,508.82/2,823.12
  6. Step 6: Final answer
    x = 3,342.23

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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.