Home / 2,960.90-4,441.34-2,780.46

Finding the Fourth Proportional to 2,960.90, 4,441.34 and 2,780.46

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Solution

The fourth proportional to 2,960.90, 4,441.34 and 2,780.46 is: 4,170.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,960.90 : 4,441.34 = 2,780.46 : x
  2. Step 2: Convert to fraction form
    2,960.90/4,441.34 = 2,780.46/x
  3. Step 3: Cross multiply
    2,960.90x = 4,441.34 × 2,780.46
  4. Step 4: Simplify right side
    2,960.90x = 12,348,954.31
  5. Step 5: Solve for x
    x = 12,348,954.31/2,960.90
  6. Step 6: Final answer
    x = 4,170.68

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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.