Home / 3,686.44-5,088.36-2,945.56

Finding the Fourth Proportional to 3,686.44, 5,088.36 and 2,945.56

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Solution

The fourth proportional to 3,686.44, 5,088.36 and 2,945.56 is: 4,065.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.44 : 5,088.36 = 2,945.56 : x
  2. Step 2: Convert to fraction form
    3,686.44/5,088.36 = 2,945.56/x
  3. Step 3: Cross multiply
    3,686.44x = 5,088.36 × 2,945.56
  4. Step 4: Simplify right side
    3,686.44x = 14,988,069.68
  5. Step 5: Solve for x
    x = 14,988,069.68/3,686.44
  6. Step 6: Final answer
    x = 4,065.73

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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.