Home / 5,538.68-7,639.46-3,549.80

Finding the Fourth Proportional to 5,538.68, 7,639.46 and 3,549.80

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Solution

The fourth proportional to 5,538.68, 7,639.46 and 3,549.80 is: 4,896.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,538.68 : 7,639.46 = 3,549.80 : x
  2. Step 2: Convert to fraction form
    5,538.68/7,639.46 = 3,549.80/x
  3. Step 3: Cross multiply
    5,538.68x = 7,639.46 × 3,549.80
  4. Step 4: Simplify right side
    5,538.68x = 27,118,555.11
  5. Step 5: Solve for x
    x = 27,118,555.11/5,538.68
  6. Step 6: Final answer
    x = 4,896.21

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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.