Home / 4,720.78-6,511.78-3,396.26

Finding the Fourth Proportional to 4,720.78, 6,511.78 and 3,396.26

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Solution

The fourth proportional to 4,720.78, 6,511.78 and 3,396.26 is: 4,684.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.78 : 6,511.78 = 3,396.26 : x
  2. Step 2: Convert to fraction form
    4,720.78/6,511.78 = 3,396.26/x
  3. Step 3: Cross multiply
    4,720.78x = 6,511.78 × 3,396.26
  4. Step 4: Simplify right side
    4,720.78x = 22,115,697.94
  5. Step 5: Solve for x
    x = 22,115,697.94/4,720.78
  6. Step 6: Final answer
    x = 4,684.76

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1.5x scale

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.