Home / 3,639.04-5,458.56-2,907.64

Finding the Fourth Proportional to 3,639.04, 5,458.56 and 2,907.64

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Solution

The fourth proportional to 3,639.04, 5,458.56 and 2,907.64 is: 4,361.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.04 : 5,458.56 = 2,907.64 : x
  2. Step 2: Convert to fraction form
    3,639.04/5,458.56 = 2,907.64/x
  3. Step 3: Cross multiply
    3,639.04x = 5,458.56 × 2,907.64
  4. Step 4: Simplify right side
    3,639.04x = 15,871,527.40
  5. Step 5: Solve for x
    x = 15,871,527.40/3,639.04
  6. Step 6: Final answer
    x = 4,361.46

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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.