Home / 5,624.39-8,436.58-2,159.21

Finding the Fourth Proportional to 5,624.39, 8,436.58 and 2,159.21

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Solution

The fourth proportional to 5,624.39, 8,436.58 and 2,159.21 is: 3,238.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,624.39 : 8,436.58 = 2,159.21 : x
  2. Step 2: Convert to fraction form
    5,624.39/8,436.58 = 2,159.21/x
  3. Step 3: Cross multiply
    5,624.39x = 8,436.58 × 2,159.21
  4. Step 4: Simplify right side
    5,624.39x = 18,216,322.21
  5. Step 5: Solve for x
    x = 18,216,322.21/5,624.39
  6. Step 6: Final answer
    x = 3,238.81

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.