Home / 5,518.14-7,617.49-3,280.74

Finding the Fourth Proportional to 5,518.14, 7,617.49 and 3,280.74

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Solution

The fourth proportional to 5,518.14, 7,617.49 and 3,280.74 is: 4,528.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.14 : 7,617.49 = 3,280.74 : x
  2. Step 2: Convert to fraction form
    5,518.14/7,617.49 = 3,280.74/x
  3. Step 3: Cross multiply
    5,518.14x = 7,617.49 × 3,280.74
  4. Step 4: Simplify right side
    5,518.14x = 24,991,004.14
  5. Step 5: Solve for x
    x = 24,991,004.14/5,518.14
  6. Step 6: Final answer
    x = 4,528.88

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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.