Home / 2,071.22-2,856.80-1,406.92

Finding the Fourth Proportional to 2,071.22, 2,856.80 and 1,406.92

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Solution

The fourth proportional to 2,071.22, 2,856.80 and 1,406.92 is: 1,940.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,071.22 : 2,856.80 = 1,406.92 : x
  2. Step 2: Convert to fraction form
    2,071.22/2,856.80 = 1,406.92/x
  3. Step 3: Cross multiply
    2,071.22x = 2,856.80 × 1,406.92
  4. Step 4: Simplify right side
    2,071.22x = 4,019,289.06
  5. Step 5: Solve for x
    x = 4,019,289.06/2,071.22
  6. Step 6: Final answer
    x = 1,940.54

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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.