Home / 4,428.87-6,636.21-3,387.61

Finding the Fourth Proportional to 4,428.87, 6,636.21 and 3,387.61

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Solution

The fourth proportional to 4,428.87, 6,636.21 and 3,387.61 is: 5,075.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.87 : 6,636.21 = 3,387.61 : x
  2. Step 2: Convert to fraction form
    4,428.87/6,636.21 = 3,387.61/x
  3. Step 3: Cross multiply
    4,428.87x = 6,636.21 × 3,387.61
  4. Step 4: Simplify right side
    4,428.87x = 22,480,891.36
  5. Step 5: Solve for x
    x = 22,480,891.36/4,428.87
  6. Step 6: Final answer
    x = 5,075.99

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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.