Home / 1,932.85-2,666.14-1,186.53

Finding the Fourth Proportional to 1,932.85, 2,666.14 and 1,186.53

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Solution

The fourth proportional to 1,932.85, 2,666.14 and 1,186.53 is: 1,636.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,932.85 : 2,666.14 = 1,186.53 : x
  2. Step 2: Convert to fraction form
    1,932.85/2,666.14 = 1,186.53/x
  3. Step 3: Cross multiply
    1,932.85x = 2,666.14 × 1,186.53
  4. Step 4: Simplify right side
    1,932.85x = 3,163,455.09
  5. Step 5: Solve for x
    x = 3,163,455.09/1,932.85
  6. Step 6: Final answer
    x = 1,636.68

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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.