Home / 3,332.90-4,999.35-2,790.20

Finding the Fourth Proportional to 3,332.90, 4,999.35 and 2,790.20

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Solution

The fourth proportional to 3,332.90, 4,999.35 and 2,790.20 is: 4,185.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,332.90 : 4,999.35 = 2,790.20 : x
  2. Step 2: Convert to fraction form
    3,332.90/4,999.35 = 2,790.20/x
  3. Step 3: Cross multiply
    3,332.90x = 4,999.35 × 2,790.20
  4. Step 4: Simplify right side
    3,332.90x = 13,949,186.37
  5. Step 5: Solve for x
    x = 13,949,186.37/3,332.90
  6. Step 6: Final answer
    x = 4,185.30

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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.