Home / 3,000.11-4,139.96-1,881

Finding the Fourth Proportional to 3,000.11, 4,139.96 and 1,881

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Solution

The fourth proportional to 3,000.11, 4,139.96 and 1,881 is: 2,595.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000.11 : 4,139.96 = 1,881 : x
  2. Step 2: Convert to fraction form
    3,000.11/4,139.96 = 1,881/x
  3. Step 3: Cross multiply
    3,000.11x = 4,139.96 × 1,881
  4. Step 4: Simplify right side
    3,000.11x = 7,787,255.36
  5. Step 5: Solve for x
    x = 7,787,255.36/3,000.11
  6. Step 6: Final answer
    x = 2,595.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.