Home / 4,217.69-6,330.39-2,139.13

Finding the Fourth Proportional to 4,217.69, 6,330.39 and 2,139.13

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Solution

The fourth proportional to 4,217.69, 6,330.39 and 2,139.13 is: 3,210.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217.69 : 6,330.39 = 2,139.13 : x
  2. Step 2: Convert to fraction form
    4,217.69/6,330.39 = 2,139.13/x
  3. Step 3: Cross multiply
    4,217.69x = 6,330.39 × 2,139.13
  4. Step 4: Simplify right side
    4,217.69x = 13,541,511.33
  5. Step 5: Solve for x
    x = 13,541,511.33/4,217.69
  6. Step 6: Final answer
    x = 3,210.65

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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.