Home / 2,186.78-3,021.29-1,526.57

Finding the Fourth Proportional to 2,186.78, 3,021.29 and 1,526.57

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Solution

The fourth proportional to 2,186.78, 3,021.29 and 1,526.57 is: 2,109.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,186.78 : 3,021.29 = 1,526.57 : x
  2. Step 2: Convert to fraction form
    2,186.78/3,021.29 = 1,526.57/x
  3. Step 3: Cross multiply
    2,186.78x = 3,021.29 × 1,526.57
  4. Step 4: Simplify right side
    2,186.78x = 4,612,187.94
  5. Step 5: Solve for x
    x = 4,612,187.94/2,186.78
  6. Step 6: Final answer
    x = 2,109.13

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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.