Home / 4,243.76-6,364.60-1,778.60

Finding the Fourth Proportional to 4,243.76, 6,364.60 and 1,778.60

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Solution

The fourth proportional to 4,243.76, 6,364.60 and 1,778.60 is: 2,667.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,243.76 : 6,364.60 = 1,778.60 : x
  2. Step 2: Convert to fraction form
    4,243.76/6,364.60 = 1,778.60/x
  3. Step 3: Cross multiply
    4,243.76x = 6,364.60 × 1,778.60
  4. Step 4: Simplify right side
    4,243.76x = 11,320,077.56
  5. Step 5: Solve for x
    x = 11,320,077.56/4,243.76
  6. Step 6: Final answer
    x = 2,667.46

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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.