Home / 1,933.79-2,666.81-1,262.11

Finding the Fourth Proportional to 1,933.79, 2,666.81 and 1,262.11

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Solution

The fourth proportional to 1,933.79, 2,666.81 and 1,262.11 is: 1,740.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933.79 : 2,666.81 = 1,262.11 : x
  2. Step 2: Convert to fraction form
    1,933.79/2,666.81 = 1,262.11/x
  3. Step 3: Cross multiply
    1,933.79x = 2,666.81 × 1,262.11
  4. Step 4: Simplify right side
    1,933.79x = 3,365,801.26
  5. Step 5: Solve for x
    x = 3,365,801.26/1,933.79
  6. Step 6: Final answer
    x = 1,740.53

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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.