Home / 3,686.36-5,086.08-2,289.56

Finding the Fourth Proportional to 3,686.36, 5,086.08 and 2,289.56

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Solution

The fourth proportional to 3,686.36, 5,086.08 and 2,289.56 is: 3,158.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.36 : 5,086.08 = 2,289.56 : x
  2. Step 2: Convert to fraction form
    3,686.36/5,086.08 = 2,289.56/x
  3. Step 3: Cross multiply
    3,686.36x = 5,086.08 × 2,289.56
  4. Step 4: Simplify right side
    3,686.36x = 11,644,885.32
  5. Step 5: Solve for x
    x = 11,644,885.32/3,686.36
  6. Step 6: Final answer
    x = 3,158.91

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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.