Home / 1,979.37-2,729.16-1,745.55

Finding the Fourth Proportional to 1,979.37, 2,729.16 and 1,745.55

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Solution

The fourth proportional to 1,979.37, 2,729.16 and 1,745.55 is: 2,406.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,979.37 : 2,729.16 = 1,745.55 : x
  2. Step 2: Convert to fraction form
    1,979.37/2,729.16 = 1,745.55/x
  3. Step 3: Cross multiply
    1,979.37x = 2,729.16 × 1,745.55
  4. Step 4: Simplify right side
    1,979.37x = 4,763,885.24
  5. Step 5: Solve for x
    x = 4,763,885.24/1,979.37
  6. Step 6: Final answer
    x = 2,406.77

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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.