Home / 1,558.36-2,149.42-1,491.92

Finding the Fourth Proportional to 1,558.36, 2,149.42 and 1,491.92

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Solution

The fourth proportional to 1,558.36, 2,149.42 and 1,491.92 is: 2,057.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.36 : 2,149.42 = 1,491.92 : x
  2. Step 2: Convert to fraction form
    1,558.36/2,149.42 = 1,491.92/x
  3. Step 3: Cross multiply
    1,558.36x = 2,149.42 × 1,491.92
  4. Step 4: Simplify right side
    1,558.36x = 3,206,762.69
  5. Step 5: Solve for x
    x = 3,206,762.69/1,558.36
  6. Step 6: Final answer
    x = 2,057.78

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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.