Home / 2,184.32-3,276.80-723.15

Finding the Fourth Proportional to 2,184.32, 3,276.80 and 723.15

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Solution

The fourth proportional to 2,184.32, 3,276.80 and 723.15 is: 1,084.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.32 : 3,276.80 = 723.15 : x
  2. Step 2: Convert to fraction form
    2,184.32/3,276.80 = 723.15/x
  3. Step 3: Cross multiply
    2,184.32x = 3,276.80 × 723.15
  4. Step 4: Simplify right side
    2,184.32x = 2,369,614.30
  5. Step 5: Solve for x
    x = 2,369,614.30/2,184.32
  6. Step 6: Final answer
    x = 1,084.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.