Home / 2,742.72-4,114.40-1,716.80

Finding the Fourth Proportional to 2,742.72, 4,114.40 and 1,716.80

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Solution

The fourth proportional to 2,742.72, 4,114.40 and 1,716.80 is: 2,575.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,742.72 : 4,114.40 = 1,716.80 : x
  2. Step 2: Convert to fraction form
    2,742.72/4,114.40 = 1,716.80/x
  3. Step 3: Cross multiply
    2,742.72x = 4,114.40 × 1,716.80
  4. Step 4: Simplify right side
    2,742.72x = 7,063,601.92
  5. Step 5: Solve for x
    x = 7,063,601.92/2,742.72
  6. Step 6: Final answer
    x = 2,575.40

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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.