Home / 5,509.07-8,260.77-2,221.28

Finding the Fourth Proportional to 5,509.07, 8,260.77 and 2,221.28

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Solution

The fourth proportional to 5,509.07, 8,260.77 and 2,221.28 is: 3,330.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.07 : 8,260.77 = 2,221.28 : x
  2. Step 2: Convert to fraction form
    5,509.07/8,260.77 = 2,221.28/x
  3. Step 3: Cross multiply
    5,509.07x = 8,260.77 × 2,221.28
  4. Step 4: Simplify right side
    5,509.07x = 18,349,483.19
  5. Step 5: Solve for x
    x = 18,349,483.19/5,509.07
  6. Step 6: Final answer
    x = 3,330.78

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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.