Home / 5,727.87-7,904.45-3,489.75

Finding the Fourth Proportional to 5,727.87, 7,904.45 and 3,489.75

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Solution

The fourth proportional to 5,727.87, 7,904.45 and 3,489.75 is: 4,815.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,727.87 : 7,904.45 = 3,489.75 : x
  2. Step 2: Convert to fraction form
    5,727.87/7,904.45 = 3,489.75/x
  3. Step 3: Cross multiply
    5,727.87x = 7,904.45 × 3,489.75
  4. Step 4: Simplify right side
    5,727.87x = 27,584,534.63
  5. Step 5: Solve for x
    x = 27,584,534.63/5,727.87
  6. Step 6: Final answer
    x = 4,815.84

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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.