Home / 2,817.05-4,226.76-1,721.45

Finding the Fourth Proportional to 2,817.05, 4,226.76 and 1,721.45

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Solution

The fourth proportional to 2,817.05, 4,226.76 and 1,721.45 is: 2,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.05 : 4,226.76 = 1,721.45 : x
  2. Step 2: Convert to fraction form
    2,817.05/4,226.76 = 1,721.45/x
  3. Step 3: Cross multiply
    2,817.05x = 4,226.76 × 1,721.45
  4. Step 4: Simplify right side
    2,817.05x = 7,276,156.00
  5. Step 5: Solve for x
    x = 7,276,156.00/2,817.05
  6. Step 6: Final answer
    x = 2,582.90

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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.