Home / 2,126.41-3,186.99-1,543.42

Finding the Fourth Proportional to 2,126.41, 3,186.99 and 1,543.42

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Solution

The fourth proportional to 2,126.41, 3,186.99 and 1,543.42 is: 2,313.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.41 : 3,186.99 = 1,543.42 : x
  2. Step 2: Convert to fraction form
    2,126.41/3,186.99 = 1,543.42/x
  3. Step 3: Cross multiply
    2,126.41x = 3,186.99 × 1,543.42
  4. Step 4: Simplify right side
    2,126.41x = 4,918,864.11
  5. Step 5: Solve for x
    x = 4,918,864.11/2,126.41
  6. Step 6: Final answer
    x = 2,313.22

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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.