Home / 5,029.36-6,939.98-2,790.64

Finding the Fourth Proportional to 5,029.36, 6,939.98 and 2,790.64

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Solution

The fourth proportional to 5,029.36, 6,939.98 and 2,790.64 is: 3,850.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,029.36 : 6,939.98 = 2,790.64 : x
  2. Step 2: Convert to fraction form
    5,029.36/6,939.98 = 2,790.64/x
  3. Step 3: Cross multiply
    5,029.36x = 6,939.98 × 2,790.64
  4. Step 4: Simplify right side
    5,029.36x = 19,366,985.79
  5. Step 5: Solve for x
    x = 19,366,985.79/5,029.36
  6. Step 6: Final answer
    x = 3,850.79

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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.