Home / 4,280.60-6,420.92-1,814.80

Finding the Fourth Proportional to 4,280.60, 6,420.92 and 1,814.80

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Solution

The fourth proportional to 4,280.60, 6,420.92 and 1,814.80 is: 2,722.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,280.60 : 6,420.92 = 1,814.80 : x
  2. Step 2: Convert to fraction form
    4,280.60/6,420.92 = 1,814.80/x
  3. Step 3: Cross multiply
    4,280.60x = 6,420.92 × 1,814.80
  4. Step 4: Simplify right side
    4,280.60x = 11,652,685.62
  5. Step 5: Solve for x
    x = 11,652,685.62/4,280.60
  6. Step 6: Final answer
    x = 2,722.21

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