Home / 3,230.24-4,446.80-2,898.55

Finding the Fourth Proportional to 3,230.24, 4,446.80 and 2,898.55

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Solution

The fourth proportional to 3,230.24, 4,446.80 and 2,898.55 is: 3,990.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,230.24 : 4,446.80 = 2,898.55 : x
  2. Step 2: Convert to fraction form
    3,230.24/4,446.80 = 2,898.55/x
  3. Step 3: Cross multiply
    3,230.24x = 4,446.80 × 2,898.55
  4. Step 4: Simplify right side
    3,230.24x = 12,889,272.14
  5. Step 5: Solve for x
    x = 12,889,272.14/3,230.24
  6. Step 6: Final answer
    x = 3,990.19

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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.