Home / 2,119.92-2,918.88-1,745.70

Finding the Fourth Proportional to 2,119.92, 2,918.88 and 1,745.70

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Solution

The fourth proportional to 2,119.92, 2,918.88 and 1,745.70 is: 2,403.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,119.92 : 2,918.88 = 1,745.70 : x
  2. Step 2: Convert to fraction form
    2,119.92/2,918.88 = 1,745.70/x
  3. Step 3: Cross multiply
    2,119.92x = 2,918.88 × 1,745.70
  4. Step 4: Simplify right side
    2,119.92x = 5,095,488.82
  5. Step 5: Solve for x
    x = 5,095,488.82/2,119.92
  6. Step 6: Final answer
    x = 2,403.62

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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.