Home / 3,515.83-5,273.33-918.97

Finding the Fourth Proportional to 3,515.83, 5,273.33 and 918.97

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Solution

The fourth proportional to 3,515.83, 5,273.33 and 918.97 is: 1,378.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,515.83 : 5,273.33 = 918.97 : x
  2. Step 2: Convert to fraction form
    3,515.83/5,273.33 = 918.97/x
  3. Step 3: Cross multiply
    3,515.83x = 5,273.33 × 918.97
  4. Step 4: Simplify right side
    3,515.83x = 4,846,014.29
  5. Step 5: Solve for x
    x = 4,846,014.29/3,515.83
  6. Step 6: Final answer
    x = 1,378.34

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1.5x scale

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.