Home / 3,559.35-4,912.11-1,987.59

Finding the Fourth Proportional to 3,559.35, 4,912.11 and 1,987.59

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Solution

The fourth proportional to 3,559.35, 4,912.11 and 1,987.59 is: 2,742.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,559.35 : 4,912.11 = 1,987.59 : x
  2. Step 2: Convert to fraction form
    3,559.35/4,912.11 = 1,987.59/x
  3. Step 3: Cross multiply
    3,559.35x = 4,912.11 × 1,987.59
  4. Step 4: Simplify right side
    3,559.35x = 9,763,260.71
  5. Step 5: Solve for x
    x = 9,763,260.71/3,559.35
  6. Step 6: Final answer
    x = 2,742.99

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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.