Home / 2,780.15-4,169.67-2,602.82

Finding the Fourth Proportional to 2,780.15, 4,169.67 and 2,602.82

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Solution

The fourth proportional to 2,780.15, 4,169.67 and 2,602.82 is: 3,903.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,780.15 : 4,169.67 = 2,602.82 : x
  2. Step 2: Convert to fraction form
    2,780.15/4,169.67 = 2,602.82/x
  3. Step 3: Cross multiply
    2,780.15x = 4,169.67 × 2,602.82
  4. Step 4: Simplify right side
    2,780.15x = 10,852,879.62
  5. Step 5: Solve for x
    x = 10,852,879.62/2,780.15
  6. Step 6: Final answer
    x = 3,903.71

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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.