Home / 2,861.28-4,293.48-1,322.28

Finding the Fourth Proportional to 2,861.28, 4,293.48 and 1,322.28

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Solution

The fourth proportional to 2,861.28, 4,293.48 and 1,322.28 is: 1,984.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.28 : 4,293.48 = 1,322.28 : x
  2. Step 2: Convert to fraction form
    2,861.28/4,293.48 = 1,322.28/x
  3. Step 3: Cross multiply
    2,861.28x = 4,293.48 × 1,322.28
  4. Step 4: Simplify right side
    2,861.28x = 5,677,182.73
  5. Step 5: Solve for x
    x = 5,677,182.73/2,861.28
  6. Step 6: Final answer
    x = 1,984.14

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1.5x scale

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.