Home / 5,518.41-7,615.43-3,000.54

Finding the Fourth Proportional to 5,518.41, 7,615.43 and 3,000.54

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Solution

The fourth proportional to 5,518.41, 7,615.43 and 3,000.54 is: 4,140.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.41 : 7,615.43 = 3,000.54 : x
  2. Step 2: Convert to fraction form
    5,518.41/7,615.43 = 3,000.54/x
  3. Step 3: Cross multiply
    5,518.41x = 7,615.43 × 3,000.54
  4. Step 4: Simplify right side
    5,518.41x = 22,850,409.83
  5. Step 5: Solve for x
    x = 22,850,409.83/5,518.41
  6. Step 6: Final answer
    x = 4,140.76

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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.