Home / 5,575.20-8,359.52-2,111.64

Finding the Fourth Proportional to 5,575.20, 8,359.52 and 2,111.64

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Solution

The fourth proportional to 5,575.20, 8,359.52 and 2,111.64 is: 3,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,575.20 : 8,359.52 = 2,111.64 : x
  2. Step 2: Convert to fraction form
    5,575.20/8,359.52 = 2,111.64/x
  3. Step 3: Cross multiply
    5,575.20x = 8,359.52 × 2,111.64
  4. Step 4: Simplify right side
    5,575.20x = 17,652,296.81
  5. Step 5: Solve for x
    x = 17,652,296.81/5,575.20
  6. Step 6: Final answer
    x = 3,166.22

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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.