Home / 3,777.80-5,667.71-2,689.08

Finding the Fourth Proportional to 3,777.80, 5,667.71 and 2,689.08

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Solution

The fourth proportional to 3,777.80, 5,667.71 and 2,689.08 is: 4,034.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.80 : 5,667.71 = 2,689.08 : x
  2. Step 2: Convert to fraction form
    3,777.80/5,667.71 = 2,689.08/x
  3. Step 3: Cross multiply
    3,777.80x = 5,667.71 × 2,689.08
  4. Step 4: Simplify right side
    3,777.80x = 15,240,912.16
  5. Step 5: Solve for x
    x = 15,240,912.16/3,777.80
  6. Step 6: Final answer
    x = 4,034.34

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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.