Home / 3,670.20-5,510.70-2,579.40

Finding the Fourth Proportional to 3,670.20, 5,510.70 and 2,579.40

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Solution

The fourth proportional to 3,670.20, 5,510.70 and 2,579.40 is: 3,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,670.20 : 5,510.70 = 2,579.40 : x
  2. Step 2: Convert to fraction form
    3,670.20/5,510.70 = 2,579.40/x
  3. Step 3: Cross multiply
    3,670.20x = 5,510.70 × 2,579.40
  4. Step 4: Simplify right side
    3,670.20x = 14,214,299.58
  5. Step 5: Solve for x
    x = 14,214,299.58/3,670.20
  6. Step 6: Final answer
    x = 3,872.90

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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.