Home / 2,946.40-4,429.20-2,773.60

Finding the Fourth Proportional to 2,946.40, 4,429.20 and 2,773.60

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Solution

The fourth proportional to 2,946.40, 4,429.20 and 2,773.60 is: 4,169.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,946.40 : 4,429.20 = 2,773.60 : x
  2. Step 2: Convert to fraction form
    2,946.40/4,429.20 = 2,773.60/x
  3. Step 3: Cross multiply
    2,946.40x = 4,429.20 × 2,773.60
  4. Step 4: Simplify right side
    2,946.40x = 12,284,829.12
  5. Step 5: Solve for x
    x = 12,284,829.12/2,946.40
  6. Step 6: Final answer
    x = 4,169.44

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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.