Home / 4,720.50-6,515.91-2,857.50

Finding the Fourth Proportional to 4,720.50, 6,515.91 and 2,857.50

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Solution

The fourth proportional to 4,720.50, 6,515.91 and 2,857.50 is: 3,944.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,720.50 : 6,515.91 = 2,857.50 : x
  2. Step 2: Convert to fraction form
    4,720.50/6,515.91 = 2,857.50/x
  3. Step 3: Cross multiply
    4,720.50x = 6,515.91 × 2,857.50
  4. Step 4: Simplify right side
    4,720.50x = 18,619,212.83
  5. Step 5: Solve for x
    x = 18,619,212.83/4,720.50
  6. Step 6: Final answer
    x = 3,944.33

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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.