Home / 2,184.08-3,276.20-723.20

Finding the Fourth Proportional to 2,184.08, 3,276.20 and 723.20

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Solution

The fourth proportional to 2,184.08, 3,276.20 and 723.20 is: 1,084.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,184.08 : 3,276.20 = 723.20 : x
  2. Step 2: Convert to fraction form
    2,184.08/3,276.20 = 723.20/x
  3. Step 3: Cross multiply
    2,184.08x = 3,276.20 × 723.20
  4. Step 4: Simplify right side
    2,184.08x = 2,369,327.84
  5. Step 5: Solve for x
    x = 2,369,327.84/2,184.08
  6. Step 6: Final answer
    x = 1,084.82

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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.