Home / 3,798.90-5,236.65-2,676.65

Finding the Fourth Proportional to 3,798.90, 5,236.65 and 2,676.65

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Solution

The fourth proportional to 3,798.90, 5,236.65 and 2,676.65 is: 3,689.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,798.90 : 5,236.65 = 2,676.65 : x
  2. Step 2: Convert to fraction form
    3,798.90/5,236.65 = 2,676.65/x
  3. Step 3: Cross multiply
    3,798.90x = 5,236.65 × 2,676.65
  4. Step 4: Simplify right side
    3,798.90x = 14,016,653.04
  5. Step 5: Solve for x
    x = 14,016,653.04/3,798.90
  6. Step 6: Final answer
    x = 3,689.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.