Home / 2,103.19-3,154.41-716.42

Finding the Fourth Proportional to 2,103.19, 3,154.41 and 716.42

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Solution

The fourth proportional to 2,103.19, 3,154.41 and 716.42 is: 1,074.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103.19 : 3,154.41 = 716.42 : x
  2. Step 2: Convert to fraction form
    2,103.19/3,154.41 = 716.42/x
  3. Step 3: Cross multiply
    2,103.19x = 3,154.41 × 716.42
  4. Step 4: Simplify right side
    2,103.19x = 2,259,882.41
  5. Step 5: Solve for x
    x = 2,259,882.41/2,103.19
  6. Step 6: Final answer
    x = 1,074.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.