Home / 3,559.63-4,912.38-1,987.84

Finding the Fourth Proportional to 3,559.63, 4,912.38 and 1,987.84

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Solution

The fourth proportional to 3,559.63, 4,912.38 and 1,987.84 is: 2,743.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,559.63 : 4,912.38 = 1,987.84 : x
  2. Step 2: Convert to fraction form
    3,559.63/4,912.38 = 1,987.84/x
  3. Step 3: Cross multiply
    3,559.63x = 4,912.38 × 1,987.84
  4. Step 4: Simplify right side
    3,559.63x = 9,765,025.46
  5. Step 5: Solve for x
    x = 9,765,025.46/3,559.63
  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.