Home / 3,440.81-5,156.87-1,877.56

Finding the Fourth Proportional to 3,440.81, 5,156.87 and 1,877.56

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Solution

The fourth proportional to 3,440.81, 5,156.87 and 1,877.56 is: 2,813.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,440.81 : 5,156.87 = 1,877.56 : x
  2. Step 2: Convert to fraction form
    3,440.81/5,156.87 = 1,877.56/x
  3. Step 3: Cross multiply
    3,440.81x = 5,156.87 × 1,877.56
  4. Step 4: Simplify right side
    3,440.81x = 9,682,307.05
  5. Step 5: Solve for x
    x = 9,682,307.05/3,440.81
  6. Step 6: Final answer
    x = 2,813.96

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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.