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Finding the Fourth Proportional to 5,519.00, 7,619.04 and 4,257.22

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Solution

The fourth proportional to 5,519.00, 7,619.04 and 4,257.22 is: 5,877.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,519.00 : 7,619.04 = 4,257.22 : x
  2. Step 2: Convert to fraction form
    5,519.00/7,619.04 = 4,257.22/x
  3. Step 3: Cross multiply
    5,519.00x = 7,619.04 × 4,257.22
  4. Step 4: Simplify right side
    5,519.00x = 32,435,961.26
  5. Step 5: Solve for x
    x = 32,435,961.26/5,519.00
  6. Step 6: Final answer
    x = 5,877.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.