Home / 1,945.56-2,917.46-558.58

Finding the Fourth Proportional to 1,945.56, 2,917.46 and 558.58

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Solution

The fourth proportional to 1,945.56, 2,917.46 and 558.58 is: 837.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.56 : 2,917.46 = 558.58 : x
  2. Step 2: Convert to fraction form
    1,945.56/2,917.46 = 558.58/x
  3. Step 3: Cross multiply
    1,945.56x = 2,917.46 × 558.58
  4. Step 4: Simplify right side
    1,945.56x = 1,629,634.81
  5. Step 5: Solve for x
    x = 1,629,634.81/1,945.56
  6. Step 6: Final answer
    x = 837.62

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1.5x scale

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.