Home / 3,664.10-5,056.46-2,172.75

Finding the Fourth Proportional to 3,664.10, 5,056.46 and 2,172.75

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Solution

The fourth proportional to 3,664.10, 5,056.46 and 2,172.75 is: 2,998.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.10 : 5,056.46 = 2,172.75 : x
  2. Step 2: Convert to fraction form
    3,664.10/5,056.46 = 2,172.75/x
  3. Step 3: Cross multiply
    3,664.10x = 5,056.46 × 2,172.75
  4. Step 4: Simplify right side
    3,664.10x = 10,986,412.60
  5. Step 5: Solve for x
    x = 10,986,412.60/3,664.10
  6. Step 6: Final answer
    x = 2,998.40

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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.