Home / 3,559.50-4,912.60-1,987.68

Finding the Fourth Proportional to 3,559.50, 4,912.60 and 1,987.68

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Solution

The fourth proportional to 3,559.50, 4,912.60 and 1,987.68 is: 2,743.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,559.50 : 4,912.60 = 1,987.68 : x
  2. Step 2: Convert to fraction form
    3,559.50/4,912.60 = 1,987.68/x
  3. Step 3: Cross multiply
    3,559.50x = 4,912.60 × 1,987.68
  4. Step 4: Simplify right side
    3,559.50x = 9,764,676.77
  5. Step 5: Solve for x
    x = 9,764,676.77/3,559.50
  6. Step 6: Final answer
    x = 2,743.27

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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.