Home / 4,052.40-6,078.78-2,108.40

Finding the Fourth Proportional to 4,052.40, 6,078.78 and 2,108.40

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Solution

The fourth proportional to 4,052.40, 6,078.78 and 2,108.40 is: 3,162.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,052.40 : 6,078.78 = 2,108.40 : x
  2. Step 2: Convert to fraction form
    4,052.40/6,078.78 = 2,108.40/x
  3. Step 3: Cross multiply
    4,052.40x = 6,078.78 × 2,108.40
  4. Step 4: Simplify right side
    4,052.40x = 12,816,499.75
  5. Step 5: Solve for x
    x = 12,816,499.75/4,052.40
  6. Step 6: Final answer
    x = 3,162.69

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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.