Home / 2,620.74-3,607.28-2,173.62

Finding the Fourth Proportional to 2,620.74, 3,607.28 and 2,173.62

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Solution

The fourth proportional to 2,620.74, 3,607.28 and 2,173.62 is: 2,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.74 : 3,607.28 = 2,173.62 : x
  2. Step 2: Convert to fraction form
    2,620.74/3,607.28 = 2,173.62/x
  3. Step 3: Cross multiply
    2,620.74x = 3,607.28 × 2,173.62
  4. Step 4: Simplify right side
    2,620.74x = 7,840,855.95
  5. Step 5: Solve for x
    x = 7,840,855.95/2,620.74
  6. Step 6: Final answer
    x = 2,991.85

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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.