Home / 2,620.18-3,615.88-1,441.36

Finding the Fourth Proportional to 2,620.18, 3,615.88 and 1,441.36

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Solution

The fourth proportional to 2,620.18, 3,615.88 and 1,441.36 is: 1,989.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620.18 : 3,615.88 = 1,441.36 : x
  2. Step 2: Convert to fraction form
    2,620.18/3,615.88 = 1,441.36/x
  3. Step 3: Cross multiply
    2,620.18x = 3,615.88 × 1,441.36
  4. Step 4: Simplify right side
    2,620.18x = 5,211,784.80
  5. Step 5: Solve for x
    x = 5,211,784.80/2,620.18
  6. Step 6: Final answer
    x = 1,989.09

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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.