Home / 3,660.73-5,051.48-2,168.40

Finding the Fourth Proportional to 3,660.73, 5,051.48 and 2,168.40

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Solution

The fourth proportional to 3,660.73, 5,051.48 and 2,168.40 is: 2,992.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.73 : 5,051.48 = 2,168.40 : x
  2. Step 2: Convert to fraction form
    3,660.73/5,051.48 = 2,168.40/x
  3. Step 3: Cross multiply
    3,660.73x = 5,051.48 × 2,168.40
  4. Step 4: Simplify right side
    3,660.73x = 10,953,653.60
  5. Step 5: Solve for x
    x = 10,953,653.60/3,660.73
  6. Step 6: Final answer
    x = 2,992.21

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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.