Home / 2,760.30-4,135.65-1,785.90

Finding the Fourth Proportional to 2,760.30, 4,135.65 and 1,785.90

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Solution

The fourth proportional to 2,760.30, 4,135.65 and 1,785.90 is: 2,675.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,760.30 : 4,135.65 = 1,785.90 : x
  2. Step 2: Convert to fraction form
    2,760.30/4,135.65 = 1,785.90/x
  3. Step 3: Cross multiply
    2,760.30x = 4,135.65 × 1,785.90
  4. Step 4: Simplify right side
    2,760.30x = 7,385,857.34
  5. Step 5: Solve for x
    x = 7,385,857.34/2,760.30
  6. Step 6: Final answer
    x = 2,675.74

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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.