Home / 5,509.88-8,266.44-2,221.28

Finding the Fourth Proportional to 5,509.88, 8,266.44 and 2,221.28

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Solution

The fourth proportional to 5,509.88, 8,266.44 and 2,221.28 is: 3,332.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.88 : 8,266.44 = 2,221.28 : x
  2. Step 2: Convert to fraction form
    5,509.88/8,266.44 = 2,221.28/x
  3. Step 3: Cross multiply
    5,509.88x = 8,266.44 × 2,221.28
  4. Step 4: Simplify right side
    5,509.88x = 18,362,077.84
  5. Step 5: Solve for x
    x = 18,362,077.84/5,509.88
  6. Step 6: Final answer
    x = 3,332.57

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1.5x scale

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.