Home / 3,664.34-5,056.80-2,172.98

Finding the Fourth Proportional to 3,664.34, 5,056.80 and 2,172.98

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Solution

The fourth proportional to 3,664.34, 5,056.80 and 2,172.98 is: 2,998.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,664.34 : 5,056.80 = 2,172.98 : x
  2. Step 2: Convert to fraction form
    3,664.34/5,056.80 = 2,172.98/x
  3. Step 3: Cross multiply
    3,664.34x = 5,056.80 × 2,172.98
  4. Step 4: Simplify right side
    3,664.34x = 10,988,325.26
  5. Step 5: Solve for x
    x = 10,988,325.26/3,664.34
  6. Step 6: Final answer
    x = 2,998.72

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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.