Home / 2,815.49-4,223.75-966.79

Finding the Fourth Proportional to 2,815.49, 4,223.75 and 966.79

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Solution

The fourth proportional to 2,815.49, 4,223.75 and 966.79 is: 1,450.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,815.49 : 4,223.75 = 966.79 : x
  2. Step 2: Convert to fraction form
    2,815.49/4,223.75 = 966.79/x
  3. Step 3: Cross multiply
    2,815.49x = 4,223.75 × 966.79
  4. Step 4: Simplify right side
    2,815.49x = 4,083,479.26
  5. Step 5: Solve for x
    x = 4,083,479.26/2,815.49
  6. Step 6: Final answer
    x = 1,450.36

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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.