Home / 1,997.16-2,989.58-1,477.77

Finding the Fourth Proportional to 1,997.16, 2,989.58 and 1,477.77

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Solution

The fourth proportional to 1,997.16, 2,989.58 and 1,477.77 is: 2,212.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,997.16 : 2,989.58 = 1,477.77 : x
  2. Step 2: Convert to fraction form
    1,997.16/2,989.58 = 1,477.77/x
  3. Step 3: Cross multiply
    1,997.16x = 2,989.58 × 1,477.77
  4. Step 4: Simplify right side
    1,997.16x = 4,417,904.25
  5. Step 5: Solve for x
    x = 4,417,904.25/1,997.16
  6. Step 6: Final answer
    x = 2,212.09

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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.