Home / 4,479.49-6,720.59-1,809.71

Finding the Fourth Proportional to 4,479.49, 6,720.59 and 1,809.71

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Solution

The fourth proportional to 4,479.49, 6,720.59 and 1,809.71 is: 2,715.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,479.49 : 6,720.59 = 1,809.71 : x
  2. Step 2: Convert to fraction form
    4,479.49/6,720.59 = 1,809.71/x
  3. Step 3: Cross multiply
    4,479.49x = 6,720.59 × 1,809.71
  4. Step 4: Simplify right side
    4,479.49x = 12,162,309.88
  5. Step 5: Solve for x
    x = 12,162,309.88/4,479.49
  6. Step 6: Final answer
    x = 2,715.11

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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.