Home / 6,446.40-9,668.04-2,980.32

Finding the Fourth Proportional to 6,446.40, 9,668.04 and 2,980.32

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Solution

The fourth proportional to 6,446.40, 9,668.04 and 2,980.32 is: 4,469.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,446.40 : 9,668.04 = 2,980.32 : x
  2. Step 2: Convert to fraction form
    6,446.40/9,668.04 = 2,980.32/x
  3. Step 3: Cross multiply
    6,446.40x = 9,668.04 × 2,980.32
  4. Step 4: Simplify right side
    6,446.40x = 28,813,852.97
  5. Step 5: Solve for x
    x = 28,813,852.97/6,446.40
  6. Step 6: Final answer
    x = 4,469.76

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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.