Home / 4,679.93-6,456.29-3,000.80

Finding the Fourth Proportional to 4,679.93, 6,456.29 and 3,000.80

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Solution

The fourth proportional to 4,679.93, 6,456.29 and 3,000.80 is: 4,139.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,679.93 : 6,456.29 = 3,000.80 : x
  2. Step 2: Convert to fraction form
    4,679.93/6,456.29 = 3,000.80/x
  3. Step 3: Cross multiply
    4,679.93x = 6,456.29 × 3,000.80
  4. Step 4: Simplify right side
    4,679.93x = 19,373,987.75
  5. Step 5: Solve for x
    x = 19,373,987.75/4,679.93
  6. Step 6: Final answer
    x = 4,139.81

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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.