Home / 3,631.89-5,010.72-2,689.66

Finding the Fourth Proportional to 3,631.89, 5,010.72 and 2,689.66

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Solution

The fourth proportional to 3,631.89, 5,010.72 and 2,689.66 is: 3,710.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,631.89 : 5,010.72 = 2,689.66 : x
  2. Step 2: Convert to fraction form
    3,631.89/5,010.72 = 2,689.66/x
  3. Step 3: Cross multiply
    3,631.89x = 5,010.72 × 2,689.66
  4. Step 4: Simplify right side
    3,631.89x = 13,477,133.16
  5. Step 5: Solve for x
    x = 13,477,133.16/3,631.89
  6. Step 6: Final answer
    x = 3,710.78

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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.