Home / 5,380.82-8,071.70-1,485.23

Finding the Fourth Proportional to 5,380.82, 8,071.70 and 1,485.23

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Solution

The fourth proportional to 5,380.82, 8,071.70 and 1,485.23 is: 2,227.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,380.82 : 8,071.70 = 1,485.23 : x
  2. Step 2: Convert to fraction form
    5,380.82/8,071.70 = 1,485.23/x
  3. Step 3: Cross multiply
    5,380.82x = 8,071.70 × 1,485.23
  4. Step 4: Simplify right side
    5,380.82x = 11,988,319.04
  5. Step 5: Solve for x
    x = 11,988,319.04/5,380.82
  6. Step 6: Final answer
    x = 2,227.97

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Double scale
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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.