Home / 2,071.14-2,856.87-1,231.25

Finding the Fourth Proportional to 2,071.14, 2,856.87 and 1,231.25

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Solution

The fourth proportional to 2,071.14, 2,856.87 and 1,231.25 is: 1,698.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.14 : 2,856.87 = 1,231.25 : x
  2. Step 2: Convert to fraction form
    2,071.14/2,856.87 = 1,231.25/x
  3. Step 3: Cross multiply
    2,071.14x = 2,856.87 × 1,231.25
  4. Step 4: Simplify right side
    2,071.14x = 3,517,506.90
  5. Step 5: Solve for x
    x = 3,517,506.90/2,071.14
  6. Step 6: Final answer
    x = 1,698.34

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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.