Home / 3,246.20-4,866.90-1,395.80

Finding the Fourth Proportional to 3,246.20, 4,866.90 and 1,395.80

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Solution

The fourth proportional to 3,246.20, 4,866.90 and 1,395.80 is: 2,092.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,246.20 : 4,866.90 = 1,395.80 : x
  2. Step 2: Convert to fraction form
    3,246.20/4,866.90 = 1,395.80/x
  3. Step 3: Cross multiply
    3,246.20x = 4,866.90 × 1,395.80
  4. Step 4: Simplify right side
    3,246.20x = 6,793,219.02
  5. Step 5: Solve for x
    x = 6,793,219.02/3,246.20
  6. Step 6: Final answer
    x = 2,092.67

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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.