Home / 2,678.16-3,671.79-2,628.84

Finding the Fourth Proportional to 2,678.16, 3,671.79 and 2,628.84

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Solution

The fourth proportional to 2,678.16, 3,671.79 and 2,628.84 is: 3,604.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,678.16 : 3,671.79 = 2,628.84 : x
  2. Step 2: Convert to fraction form
    2,678.16/3,671.79 = 2,628.84/x
  3. Step 3: Cross multiply
    2,678.16x = 3,671.79 × 2,628.84
  4. Step 4: Simplify right side
    2,678.16x = 9,652,548.42
  5. Step 5: Solve for x
    x = 9,652,548.42/2,678.16
  6. Step 6: Final answer
    x = 3,604.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.