Home / 3,478.49-5,217.74-1,013.56

Finding the Fourth Proportional to 3,478.49, 5,217.74 and 1,013.56

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Solution

The fourth proportional to 3,478.49, 5,217.74 and 1,013.56 is: 1,520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478.49 : 5,217.74 = 1,013.56 : x
  2. Step 2: Convert to fraction form
    3,478.49/5,217.74 = 1,013.56/x
  3. Step 3: Cross multiply
    3,478.49x = 5,217.74 × 1,013.56
  4. Step 4: Simplify right side
    3,478.49x = 5,288,510.44
  5. Step 5: Solve for x
    x = 5,288,510.44/3,478.49
  6. Step 6: Final answer
    x = 1,520.34

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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.