Home / 4,120.18-6,180.27-1,930.45

Finding the Fourth Proportional to 4,120.18, 6,180.27 and 1,930.45

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Solution

The fourth proportional to 4,120.18, 6,180.27 and 1,930.45 is: 2,895.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.18 : 6,180.27 = 1,930.45 : x
  2. Step 2: Convert to fraction form
    4,120.18/6,180.27 = 1,930.45/x
  3. Step 3: Cross multiply
    4,120.18x = 6,180.27 × 1,930.45
  4. Step 4: Simplify right side
    4,120.18x = 11,930,702.22
  5. Step 5: Solve for x
    x = 11,930,702.22/4,120.18
  6. Step 6: Final answer
    x = 2,895.68

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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.