Home / 4,301.20-6,451.80-1,379.80

Finding the Fourth Proportional to 4,301.20, 6,451.80 and 1,379.80

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Solution

The fourth proportional to 4,301.20, 6,451.80 and 1,379.80 is: 2,069.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,301.20 : 6,451.80 = 1,379.80 : x
  2. Step 2: Convert to fraction form
    4,301.20/6,451.80 = 1,379.80/x
  3. Step 3: Cross multiply
    4,301.20x = 6,451.80 × 1,379.80
  4. Step 4: Simplify right side
    4,301.20x = 8,902,193.64
  5. Step 5: Solve for x
    x = 8,902,193.64/4,301.20
  6. Step 6: Final answer
    x = 2,069.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.