Home / 2,277.11-3,142.56-1,282.64

Finding the Fourth Proportional to 2,277.11, 3,142.56 and 1,282.64

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Solution

The fourth proportional to 2,277.11, 3,142.56 and 1,282.64 is: 1,770.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,277.11 : 3,142.56 = 1,282.64 : x
  2. Step 2: Convert to fraction form
    2,277.11/3,142.56 = 1,282.64/x
  3. Step 3: Cross multiply
    2,277.11x = 3,142.56 × 1,282.64
  4. Step 4: Simplify right side
    2,277.11x = 4,030,762.26
  5. Step 5: Solve for x
    x = 4,030,762.26/2,277.11
  6. Step 6: Final answer
    x = 1,770.12

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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.