Home / 3,478.05-5,217.26-1,698.57

Finding the Fourth Proportional to 3,478.05, 5,217.26 and 1,698.57

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Solution

The fourth proportional to 3,478.05, 5,217.26 and 1,698.57 is: 2,547.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.05 : 5,217.26 = 1,698.57 : x
  2. Step 2: Convert to fraction form
    3,478.05/5,217.26 = 1,698.57/x
  3. Step 3: Cross multiply
    3,478.05x = 5,217.26 × 1,698.57
  4. Step 4: Simplify right side
    3,478.05x = 8,861,872.83
  5. Step 5: Solve for x
    x = 8,861,872.83/3,478.05
  6. Step 6: Final answer
    x = 2,547.94

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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.