Home / 1,558.26-2,150.44-859.68

Finding the Fourth Proportional to 1,558.26, 2,150.44 and 859.68

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Solution

The fourth proportional to 1,558.26, 2,150.44 and 859.68 is: 1,186.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.26 : 2,150.44 = 859.68 : x
  2. Step 2: Convert to fraction form
    1,558.26/2,150.44 = 859.68/x
  3. Step 3: Cross multiply
    1,558.26x = 2,150.44 × 859.68
  4. Step 4: Simplify right side
    1,558.26x = 1,848,690.26
  5. Step 5: Solve for x
    x = 1,848,690.26/1,558.26
  6. Step 6: Final answer
    x = 1,186.38

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1.5x scale

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.