Home / 4,440.25-6,661.68-1,320.28

Finding the Fourth Proportional to 4,440.25, 6,661.68 and 1,320.28

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Solution

The fourth proportional to 4,440.25, 6,661.68 and 1,320.28 is: 1,980.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,440.25 : 6,661.68 = 1,320.28 : x
  2. Step 2: Convert to fraction form
    4,440.25/6,661.68 = 1,320.28/x
  3. Step 3: Cross multiply
    4,440.25x = 6,661.68 × 1,320.28
  4. Step 4: Simplify right side
    4,440.25x = 8,795,282.87
  5. Step 5: Solve for x
    x = 8,795,282.87/4,440.25
  6. Step 6: Final answer
    x = 1,980.81

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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.