Home / 3,639.04-5,458.56-1,329.28

Finding the Fourth Proportional to 3,639.04, 5,458.56 and 1,329.28

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Solution

The fourth proportional to 3,639.04, 5,458.56 and 1,329.28 is: 1,993.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.04 : 5,458.56 = 1,329.28 : x
  2. Step 2: Convert to fraction form
    3,639.04/5,458.56 = 1,329.28/x
  3. Step 3: Cross multiply
    3,639.04x = 5,458.56 × 1,329.28
  4. Step 4: Simplify right side
    3,639.04x = 7,255,954.64
  5. Step 5: Solve for x
    x = 7,255,954.64/3,639.04
  6. Step 6: Final answer
    x = 1,993.92

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Similar ratio
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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.