Home / 2,628.43-3,942.65-1,457.88

Finding the Fourth Proportional to 2,628.43, 3,942.65 and 1,457.88

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Solution

The fourth proportional to 2,628.43, 3,942.65 and 1,457.88 is: 2,186.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,628.43 : 3,942.65 = 1,457.88 : x
  2. Step 2: Convert to fraction form
    2,628.43/3,942.65 = 1,457.88/x
  3. Step 3: Cross multiply
    2,628.43x = 3,942.65 × 1,457.88
  4. Step 4: Simplify right side
    2,628.43x = 5,747,910.58
  5. Step 5: Solve for x
    x = 5,747,910.58/2,628.43
  6. Step 6: Final answer
    x = 2,186.82

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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.