Home / 3,611.80-5,417.72-2,051.20

Finding the Fourth Proportional to 3,611.80, 5,417.72 and 2,051.20

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Solution

The fourth proportional to 3,611.80, 5,417.72 and 2,051.20 is: 3,076.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.80 : 5,417.72 = 2,051.20 : x
  2. Step 2: Convert to fraction form
    3,611.80/5,417.72 = 2,051.20/x
  3. Step 3: Cross multiply
    3,611.80x = 5,417.72 × 2,051.20
  4. Step 4: Simplify right side
    3,611.80x = 11,112,827.26
  5. Step 5: Solve for x
    x = 11,112,827.26/3,611.80
  6. Step 6: Final answer
    x = 3,076.81

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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.