Home / 3,129.49-4,694.51-1,048.75

Finding the Fourth Proportional to 3,129.49, 4,694.51 and 1,048.75

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Solution

The fourth proportional to 3,129.49, 4,694.51 and 1,048.75 is: 1,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,129.49 : 4,694.51 = 1,048.75 : x
  2. Step 2: Convert to fraction form
    3,129.49/4,694.51 = 1,048.75/x
  3. Step 3: Cross multiply
    3,129.49x = 4,694.51 × 1,048.75
  4. Step 4: Simplify right side
    3,129.49x = 4,923,352.35
  5. Step 5: Solve for x
    x = 4,923,352.35/3,129.49
  6. Step 6: Final answer
    x = 1,573.21

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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.