Home / 4,923.80-6,780.30-4,399.64

Finding the Fourth Proportional to 4,923.80, 6,780.30 and 4,399.64

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Solution

The fourth proportional to 4,923.80, 6,780.30 and 4,399.64 is: 6,058.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,923.80 : 6,780.30 = 4,399.64 : x
  2. Step 2: Convert to fraction form
    4,923.80/6,780.30 = 4,399.64/x
  3. Step 3: Cross multiply
    4,923.80x = 6,780.30 × 4,399.64
  4. Step 4: Simplify right side
    4,923.80x = 29,830,879.09
  5. Step 5: Solve for x
    x = 29,830,879.09/4,923.80
  6. Step 6: Final answer
    x = 6,058.51

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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.