Home / 5,538.49-7,639.31-3,298.64

Finding the Fourth Proportional to 5,538.49, 7,639.31 and 3,298.64

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Solution

The fourth proportional to 5,538.49, 7,639.31 and 3,298.64 is: 4,549.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.49 : 7,639.31 = 3,298.64 : x
  2. Step 2: Convert to fraction form
    5,538.49/7,639.31 = 3,298.64/x
  3. Step 3: Cross multiply
    5,538.49x = 7,639.31 × 3,298.64
  4. Step 4: Simplify right side
    5,538.49x = 25,199,333.54
  5. Step 5: Solve for x
    x = 25,199,333.54/5,538.49
  6. Step 6: Final answer
    x = 4,549.86

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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.