Home / 2,877.45-4,309.79-2,807.61

Finding the Fourth Proportional to 2,877.45, 4,309.79 and 2,807.61

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Solution

The fourth proportional to 2,877.45, 4,309.79 and 2,807.61 is: 4,205.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,877.45 : 4,309.79 = 2,807.61 : x
  2. Step 2: Convert to fraction form
    2,877.45/4,309.79 = 2,807.61/x
  3. Step 3: Cross multiply
    2,877.45x = 4,309.79 × 2,807.61
  4. Step 4: Simplify right side
    2,877.45x = 12,100,195.46
  5. Step 5: Solve for x
    x = 12,100,195.46/2,877.45
  6. Step 6: Final answer
    x = 4,205.18

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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.