Home / 3,455.50-4,771.40-2,817.54

Finding the Fourth Proportional to 3,455.50, 4,771.40 and 2,817.54

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Solution

The fourth proportional to 3,455.50, 4,771.40 and 2,817.54 is: 3,890.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,455.50 : 4,771.40 = 2,817.54 : x
  2. Step 2: Convert to fraction form
    3,455.50/4,771.40 = 2,817.54/x
  3. Step 3: Cross multiply
    3,455.50x = 4,771.40 × 2,817.54
  4. Step 4: Simplify right side
    3,455.50x = 13,443,610.36
  5. Step 5: Solve for x
    x = 13,443,610.36/3,455.50
  6. Step 6: Final answer
    x = 3,890.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.