Home / 3,639.96-5,453.28-1,903.32

Finding the Fourth Proportional to 3,639.96, 5,453.28 and 1,903.32

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Solution

The fourth proportional to 3,639.96, 5,453.28 and 1,903.32 is: 2,851.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.96 : 5,453.28 = 1,903.32 : x
  2. Step 2: Convert to fraction form
    3,639.96/5,453.28 = 1,903.32/x
  3. Step 3: Cross multiply
    3,639.96x = 5,453.28 × 1,903.32
  4. Step 4: Simplify right side
    3,639.96x = 10,379,336.89
  5. Step 5: Solve for x
    x = 10,379,336.89/3,639.96
  6. Step 6: Final answer
    x = 2,851.50

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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.