Home / 5,518.54-7,615.74-3,000.82

Finding the Fourth Proportional to 5,518.54, 7,615.74 and 3,000.82

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Solution

The fourth proportional to 5,518.54, 7,615.74 and 3,000.82 is: 4,141.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.54 : 7,615.74 = 3,000.82 : x
  2. Step 2: Convert to fraction form
    5,518.54/7,615.74 = 3,000.82/x
  3. Step 3: Cross multiply
    5,518.54x = 7,615.74 × 3,000.82
  4. Step 4: Simplify right side
    5,518.54x = 22,853,464.91
  5. Step 5: Solve for x
    x = 22,853,464.91/5,518.54
  6. Step 6: Final answer
    x = 4,141.22

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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.