Home / 3,477.05-5,215.60-2,782.81

Finding the Fourth Proportional to 3,477.05, 5,215.60 and 2,782.81

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Solution

The fourth proportional to 3,477.05, 5,215.60 and 2,782.81 is: 4,174.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,477.05 : 5,215.60 = 2,782.81 : x
  2. Step 2: Convert to fraction form
    3,477.05/5,215.60 = 2,782.81/x
  3. Step 3: Cross multiply
    3,477.05x = 5,215.60 × 2,782.81
  4. Step 4: Simplify right side
    3,477.05x = 14,513,997.76
  5. Step 5: Solve for x
    x = 14,513,997.76/3,477.05
  6. Step 6: Final answer
    x = 4,174.23

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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.