Home / 2,080.40-2,871.18-1,184.36

Finding the Fourth Proportional to 2,080.40, 2,871.18 and 1,184.36

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Solution

The fourth proportional to 2,080.40, 2,871.18 and 1,184.36 is: 1,634.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,080.40 : 2,871.18 = 1,184.36 : x
  2. Step 2: Convert to fraction form
    2,080.40/2,871.18 = 1,184.36/x
  3. Step 3: Cross multiply
    2,080.40x = 2,871.18 × 1,184.36
  4. Step 4: Simplify right side
    2,080.40x = 3,400,496.39
  5. Step 5: Solve for x
    x = 3,400,496.39/2,080.40
  6. Step 6: Final answer
    x = 1,634.54

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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.