Home / 3,639.60-5,452.80-2,077.68

Finding the Fourth Proportional to 3,639.60, 5,452.80 and 2,077.68

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Solution

The fourth proportional to 3,639.60, 5,452.80 and 2,077.68 is: 3,112.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.60 : 5,452.80 = 2,077.68 : x
  2. Step 2: Convert to fraction form
    3,639.60/5,452.80 = 2,077.68/x
  3. Step 3: Cross multiply
    3,639.60x = 5,452.80 × 2,077.68
  4. Step 4: Simplify right side
    3,639.60x = 11,329,173.50
  5. Step 5: Solve for x
    x = 11,329,173.50/3,639.60
  6. Step 6: Final answer
    x = 3,112.75

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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.