Home / 10,780.88-16,169.52-2,990.48

Finding the Fourth Proportional to 10,780.88, 16,169.52 and 2,990.48

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Solution

The fourth proportional to 10,780.88, 16,169.52 and 2,990.48 is: 4,485.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,780.88 : 16,169.52 = 2,990.48 : x
  2. Step 2: Convert to fraction form
    10,780.88/16,169.52 = 2,990.48/x
  3. Step 3: Cross multiply
    10,780.88x = 16,169.52 × 2,990.48
  4. Step 4: Simplify right side
    10,780.88x = 48,354,626.17
  5. Step 5: Solve for x
    x = 48,354,626.17/10,780.88
  6. Step 6: Final answer
    x = 4,485.22

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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.