Home / 4,139.76-6,211.64-1,830.96

Finding the Fourth Proportional to 4,139.76, 6,211.64 and 1,830.96

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Solution

The fourth proportional to 4,139.76, 6,211.64 and 1,830.96 is: 2,747.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,139.76 : 6,211.64 = 1,830.96 : x
  2. Step 2: Convert to fraction form
    4,139.76/6,211.64 = 1,830.96/x
  3. Step 3: Cross multiply
    4,139.76x = 6,211.64 × 1,830.96
  4. Step 4: Simplify right side
    4,139.76x = 11,373,264.37
  5. Step 5: Solve for x
    x = 11,373,264.37/4,139.76
  6. Step 6: Final answer
    x = 2,747.32

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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.