Home / 2,972.85-4,460.79-2,157.83

Finding the Fourth Proportional to 2,972.85, 4,460.79 and 2,157.83

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Solution

The fourth proportional to 2,972.85, 4,460.79 and 2,157.83 is: 3,237.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.85 : 4,460.79 = 2,157.83 : x
  2. Step 2: Convert to fraction form
    2,972.85/4,460.79 = 2,157.83/x
  3. Step 3: Cross multiply
    2,972.85x = 4,460.79 × 2,157.83
  4. Step 4: Simplify right side
    2,972.85x = 9,625,604.18
  5. Step 5: Solve for x
    x = 9,625,604.18/2,972.85
  6. Step 6: Final answer
    x = 3,237.84

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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.