Home / 2,152.62-2,970.57-1,208.34

Finding the Fourth Proportional to 2,152.62, 2,970.57 and 1,208.34

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Solution

The fourth proportional to 2,152.62, 2,970.57 and 1,208.34 is: 1,667.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,152.62 : 2,970.57 = 1,208.34 : x
  2. Step 2: Convert to fraction form
    2,152.62/2,970.57 = 1,208.34/x
  3. Step 3: Cross multiply
    2,152.62x = 2,970.57 × 1,208.34
  4. Step 4: Simplify right side
    2,152.62x = 3,589,450.84
  5. Step 5: Solve for x
    x = 3,589,450.84/2,152.62
  6. Step 6: Final answer
    x = 1,667.48

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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.