Home / 4,178.28-6,263.37-1,986.42

Finding the Fourth Proportional to 4,178.28, 6,263.37 and 1,986.42

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Solution

The fourth proportional to 4,178.28, 6,263.37 and 1,986.42 is: 2,977.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,178.28 : 6,263.37 = 1,986.42 : x
  2. Step 2: Convert to fraction form
    4,178.28/6,263.37 = 1,986.42/x
  3. Step 3: Cross multiply
    4,178.28x = 6,263.37 × 1,986.42
  4. Step 4: Simplify right side
    4,178.28x = 12,441,683.44
  5. Step 5: Solve for x
    x = 12,441,683.44/4,178.28
  6. Step 6: Final answer
    x = 2,977.70

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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.