Home / 2,817.24-3,886.79-1,873.49

Finding the Fourth Proportional to 2,817.24, 3,886.79 and 1,873.49

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Solution

The fourth proportional to 2,817.24, 3,886.79 and 1,873.49 is: 2,584.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.24 : 3,886.79 = 1,873.49 : x
  2. Step 2: Convert to fraction form
    2,817.24/3,886.79 = 1,873.49/x
  3. Step 3: Cross multiply
    2,817.24x = 3,886.79 × 1,873.49
  4. Step 4: Simplify right side
    2,817.24x = 7,281,833.40
  5. Step 5: Solve for x
    x = 7,281,833.40/2,817.24
  6. Step 6: Final answer
    x = 2,584.74

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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.