Home / 5,727.20-7,903.62-3,489.18

Finding the Fourth Proportional to 5,727.20, 7,903.62 and 3,489.18

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Solution

The fourth proportional to 5,727.20, 7,903.62 and 3,489.18 is: 4,815.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,727.20 : 7,903.62 = 3,489.18 : x
  2. Step 2: Convert to fraction form
    5,727.20/7,903.62 = 3,489.18/x
  3. Step 3: Cross multiply
    5,727.20x = 7,903.62 × 3,489.18
  4. Step 4: Simplify right side
    5,727.20x = 27,577,152.83
  5. Step 5: Solve for x
    x = 27,577,152.83/5,727.20
  6. Step 6: Final answer
    x = 4,815.12

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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.