Home / 2,861.76-4,293.16-1,322.76

Finding the Fourth Proportional to 2,861.76, 4,293.16 and 1,322.76

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Solution

The fourth proportional to 2,861.76, 4,293.16 and 1,322.76 is: 1,984.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.76 : 4,293.16 = 1,322.76 : x
  2. Step 2: Convert to fraction form
    2,861.76/4,293.16 = 1,322.76/x
  3. Step 3: Cross multiply
    2,861.76x = 4,293.16 × 1,322.76
  4. Step 4: Simplify right side
    2,861.76x = 5,678,820.32
  5. Step 5: Solve for x
    x = 5,678,820.32/2,861.76
  6. Step 6: Final answer
    x = 1,984.38

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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.