Home / 6,440.94-9,663.23-3,810.78

Finding the Fourth Proportional to 6,440.94, 9,663.23 and 3,810.78

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Solution

The fourth proportional to 6,440.94, 9,663.23 and 3,810.78 is: 5,717.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.94 : 9,663.23 = 3,810.78 : x
  2. Step 2: Convert to fraction form
    6,440.94/9,663.23 = 3,810.78/x
  3. Step 3: Cross multiply
    6,440.94x = 9,663.23 × 3,810.78
  4. Step 4: Simplify right side
    6,440.94x = 36,824,443.62
  5. Step 5: Solve for x
    x = 36,824,443.62/6,440.94
  6. Step 6: Final answer
    x = 5,717.25

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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.