Home / 1,945.38-2,917.18-558.39

Finding the Fourth Proportional to 1,945.38, 2,917.18 and 558.39

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Solution

The fourth proportional to 1,945.38, 2,917.18 and 558.39 is: 837.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,945.38 : 2,917.18 = 558.39 : x
  2. Step 2: Convert to fraction form
    1,945.38/2,917.18 = 558.39/x
  3. Step 3: Cross multiply
    1,945.38x = 2,917.18 × 558.39
  4. Step 4: Simplify right side
    1,945.38x = 1,628,924.14
  5. Step 5: Solve for x
    x = 1,628,924.14/1,945.38
  6. Step 6: Final answer
    x = 837.33

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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.