Home / 6,440.30-9,660.45-2,057.90

Finding the Fourth Proportional to 6,440.30, 9,660.45 and 2,057.90

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Solution

The fourth proportional to 6,440.30, 9,660.45 and 2,057.90 is: 3,086.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.30 : 9,660.45 = 2,057.90 : x
  2. Step 2: Convert to fraction form
    6,440.30/9,660.45 = 2,057.90/x
  3. Step 3: Cross multiply
    6,440.30x = 9,660.45 × 2,057.90
  4. Step 4: Simplify right side
    6,440.30x = 19,880,240.06
  5. Step 5: Solve for x
    x = 19,880,240.06/6,440.30
  6. Step 6: Final answer
    x = 3,086.85

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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.