Home / 3,379.90-5,070.71-1,188.85

Finding the Fourth Proportional to 3,379.90, 5,070.71 and 1,188.85

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Solution

The fourth proportional to 3,379.90, 5,070.71 and 1,188.85 is: 1,783.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,379.90 : 5,070.71 = 1,188.85 : x
  2. Step 2: Convert to fraction form
    3,379.90/5,070.71 = 1,188.85/x
  3. Step 3: Cross multiply
    3,379.90x = 5,070.71 × 1,188.85
  4. Step 4: Simplify right side
    3,379.90x = 6,028,313.58
  5. Step 5: Solve for x
    x = 6,028,313.58/3,379.90
  6. Step 6: Final answer
    x = 1,783.58

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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.