Home / 3,220.40-4,817.10-2,893.70

Finding the Fourth Proportional to 3,220.40, 4,817.10 and 2,893.70

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Solution

The fourth proportional to 3,220.40, 4,817.10 and 2,893.70 is: 4,328.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.40 : 4,817.10 = 2,893.70 : x
  2. Step 2: Convert to fraction form
    3,220.40/4,817.10 = 2,893.70/x
  3. Step 3: Cross multiply
    3,220.40x = 4,817.10 × 2,893.70
  4. Step 4: Simplify right side
    3,220.40x = 13,939,242.27
  5. Step 5: Solve for x
    x = 13,939,242.27/3,220.40
  6. Step 6: Final answer
    x = 4,328.42

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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.