Home / 1,675.26-2,311.66-929.12

Finding the Fourth Proportional to 1,675.26, 2,311.66 and 929.12

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Solution

The fourth proportional to 1,675.26, 2,311.66 and 929.12 is: 1,282.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,675.26 : 2,311.66 = 929.12 : x
  2. Step 2: Convert to fraction form
    1,675.26/2,311.66 = 929.12/x
  3. Step 3: Cross multiply
    1,675.26x = 2,311.66 × 929.12
  4. Step 4: Simplify right side
    1,675.26x = 2,147,809.54
  5. Step 5: Solve for x
    x = 2,147,809.54/1,675.26
  6. Step 6: Final answer
    x = 1,282.08

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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.