Home / 3,747.80-5,621.70-1,150.40

Finding the Fourth Proportional to 3,747.80, 5,621.70 and 1,150.40

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Solution

The fourth proportional to 3,747.80, 5,621.70 and 1,150.40 is: 1,725.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,747.80 : 5,621.70 = 1,150.40 : x
  2. Step 2: Convert to fraction form
    3,747.80/5,621.70 = 1,150.40/x
  3. Step 3: Cross multiply
    3,747.80x = 5,621.70 × 1,150.40
  4. Step 4: Simplify right side
    3,747.80x = 6,467,203.68
  5. Step 5: Solve for x
    x = 6,467,203.68/3,747.80
  6. Step 6: Final answer
    x = 1,725.60

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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.