Home / 2,636.88-3,638.57-1,457.79

Finding the Fourth Proportional to 2,636.88, 3,638.57 and 1,457.79

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Solution

The fourth proportional to 2,636.88, 3,638.57 and 1,457.79 is: 2,011.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,636.88 : 3,638.57 = 1,457.79 : x
  2. Step 2: Convert to fraction form
    2,636.88/3,638.57 = 1,457.79/x
  3. Step 3: Cross multiply
    2,636.88x = 3,638.57 × 1,457.79
  4. Step 4: Simplify right side
    2,636.88x = 5,304,270.96
  5. Step 5: Solve for x
    x = 5,304,270.96/2,636.88
  6. Step 6: Final answer
    x = 2,011.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.