Home / 1,558.44-2,150.55-859.83

Finding the Fourth Proportional to 1,558.44, 2,150.55 and 859.83

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Solution

The fourth proportional to 1,558.44, 2,150.55 and 859.83 is: 1,186.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.44 : 2,150.55 = 859.83 : x
  2. Step 2: Convert to fraction form
    1,558.44/2,150.55 = 859.83/x
  3. Step 3: Cross multiply
    1,558.44x = 2,150.55 × 859.83
  4. Step 4: Simplify right side
    1,558.44x = 1,849,107.41
  5. Step 5: Solve for x
    x = 1,849,107.41/1,558.44
  6. Step 6: Final answer
    x = 1,186.51

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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.