Home / 3,146.76-4,720.68-1,415.52

Finding the Fourth Proportional to 3,146.76, 4,720.68 and 1,415.52

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Solution

The fourth proportional to 3,146.76, 4,720.68 and 1,415.52 is: 2,123.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.76 : 4,720.68 = 1,415.52 : x
  2. Step 2: Convert to fraction form
    3,146.76/4,720.68 = 1,415.52/x
  3. Step 3: Cross multiply
    3,146.76x = 4,720.68 × 1,415.52
  4. Step 4: Simplify right side
    3,146.76x = 6,682,216.95
  5. Step 5: Solve for x
    x = 6,682,216.95/3,146.76
  6. Step 6: Final answer
    x = 2,123.52

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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.