Home / 3,137.80-4,706.70-1,190.00

Finding the Fourth Proportional to 3,137.80, 4,706.70 and 1,190.00

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Solution

The fourth proportional to 3,137.80, 4,706.70 and 1,190.00 is: 1,785.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.80 : 4,706.70 = 1,190.00 : x
  2. Step 2: Convert to fraction form
    3,137.80/4,706.70 = 1,190.00/x
  3. Step 3: Cross multiply
    3,137.80x = 4,706.70 × 1,190.00
  4. Step 4: Simplify right side
    3,137.80x = 5,600,992.78
  5. Step 5: Solve for x
    x = 5,600,992.78/3,137.80
  6. Step 6: Final answer
    x = 1,785.01

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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.