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Finding the Fourth Proportional to 5,448.70, 8,221.70 and 5,266.45

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Solution

The fourth proportional to 5,448.70, 8,221.70 and 5,266.45 is: 7,946.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,448.70 : 8,221.70 = 5,266.45 : x
  2. Step 2: Convert to fraction form
    5,448.70/8,221.70 = 5,266.45/x
  3. Step 3: Cross multiply
    5,448.70x = 8,221.70 × 5,266.45
  4. Step 4: Simplify right side
    5,448.70x = 43,299,171.97
  5. Step 5: Solve for x
    x = 43,299,171.97/5,448.70
  6. Step 6: Final answer
    x = 7,946.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.