Home / 3,581.00-4,941.61-1,987.64

Finding the Fourth Proportional to 3,581.00, 4,941.61 and 1,987.64

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Solution

The fourth proportional to 3,581.00, 4,941.61 and 1,987.64 is: 2,742.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,581.00 : 4,941.61 = 1,987.64 : x
  2. Step 2: Convert to fraction form
    3,581.00/4,941.61 = 1,987.64/x
  3. Step 3: Cross multiply
    3,581.00x = 4,941.61 × 1,987.64
  4. Step 4: Simplify right side
    3,581.00x = 9,822,107.05
  5. Step 5: Solve for x
    x = 9,822,107.05/3,581.00
  6. Step 6: Final answer
    x = 2,742.84

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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.