Home / 2,861.44-4,289.52-1,129.60

Finding the Fourth Proportional to 2,861.44, 4,289.52 and 1,129.60

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Solution

The fourth proportional to 2,861.44, 4,289.52 and 1,129.60 is: 1,693.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.44 : 4,289.52 = 1,129.60 : x
  2. Step 2: Convert to fraction form
    2,861.44/4,289.52 = 1,129.60/x
  3. Step 3: Cross multiply
    2,861.44x = 4,289.52 × 1,129.60
  4. Step 4: Simplify right side
    2,861.44x = 4,845,441.79
  5. Step 5: Solve for x
    x = 4,845,441.79/2,861.44
  6. Step 6: Final answer
    x = 1,693.36

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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.