Home / 3,507.86-5,269.08-2,782.50

Finding the Fourth Proportional to 3,507.86, 5,269.08 and 2,782.50

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Solution

The fourth proportional to 3,507.86, 5,269.08 and 2,782.50 is: 4,179.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.86 : 5,269.08 = 2,782.50 : x
  2. Step 2: Convert to fraction form
    3,507.86/5,269.08 = 2,782.50/x
  3. Step 3: Cross multiply
    3,507.86x = 5,269.08 × 2,782.50
  4. Step 4: Simplify right side
    3,507.86x = 14,661,214.36
  5. Step 5: Solve for x
    x = 14,661,214.36/3,507.86
  6. Step 6: Final answer
    x = 4,179.54

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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.