Home / 4,284.60-6,426.90-3,980.85

Finding the Fourth Proportional to 4,284.60, 6,426.90 and 3,980.85

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Solution

The fourth proportional to 4,284.60, 6,426.90 and 3,980.85 is: 5,971.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,284.60 : 6,426.90 = 3,980.85 : x
  2. Step 2: Convert to fraction form
    4,284.60/6,426.90 = 3,980.85/x
  3. Step 3: Cross multiply
    4,284.60x = 6,426.90 × 3,980.85
  4. Step 4: Simplify right side
    4,284.60x = 25,584,524.87
  5. Step 5: Solve for x
    x = 25,584,524.87/4,284.60
  6. Step 6: Final answer
    x = 5,971.28

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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.