Home / 3,686.49-5,080.28-2,357.89

Finding the Fourth Proportional to 3,686.49, 5,080.28 and 2,357.89

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Solution

The fourth proportional to 3,686.49, 5,080.28 and 2,357.89 is: 3,249.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.49 : 5,080.28 = 2,357.89 : x
  2. Step 2: Convert to fraction form
    3,686.49/5,080.28 = 2,357.89/x
  3. Step 3: Cross multiply
    3,686.49x = 5,080.28 × 2,357.89
  4. Step 4: Simplify right side
    3,686.49x = 11,978,716.92
  5. Step 5: Solve for x
    x = 11,978,716.92/3,686.49
  6. Step 6: Final answer
    x = 3,249.36

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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.