Home / 2,689.67-4,034.48-1,047.36

Finding the Fourth Proportional to 2,689.67, 4,034.48 and 1,047.36

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Solution

The fourth proportional to 2,689.67, 4,034.48 and 1,047.36 is: 1,571.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.67 : 4,034.48 = 1,047.36 : x
  2. Step 2: Convert to fraction form
    2,689.67/4,034.48 = 1,047.36/x
  3. Step 3: Cross multiply
    2,689.67x = 4,034.48 × 1,047.36
  4. Step 4: Simplify right side
    2,689.67x = 4,225,555.59
  5. Step 5: Solve for x
    x = 4,225,555.59/2,689.67
  6. Step 6: Final answer
    x = 1,571.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.