Home / 3,193.40-4,406.19-1,866.50

Finding the Fourth Proportional to 3,193.40, 4,406.19 and 1,866.50

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Solution

The fourth proportional to 3,193.40, 4,406.19 and 1,866.50 is: 2,575.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,193.40 : 4,406.19 = 1,866.50 : x
  2. Step 2: Convert to fraction form
    3,193.40/4,406.19 = 1,866.50/x
  3. Step 3: Cross multiply
    3,193.40x = 4,406.19 × 1,866.50
  4. Step 4: Simplify right side
    3,193.40x = 8,224,131.60
  5. Step 5: Solve for x
    x = 8,224,131.60/3,193.40
  6. Step 6: Final answer
    x = 2,575.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.