Home / 5,171.49-7,705.87-4,920.44

Finding the Fourth Proportional to 5,171.49, 7,705.87 and 4,920.44

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Solution

The fourth proportional to 5,171.49, 7,705.87 and 4,920.44 is: 7,331.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,171.49 : 7,705.87 = 4,920.44 : x
  2. Step 2: Convert to fraction form
    5,171.49/7,705.87 = 4,920.44/x
  3. Step 3: Cross multiply
    5,171.49x = 7,705.87 × 4,920.44
  4. Step 4: Simplify right side
    5,171.49x = 37,916,247.83
  5. Step 5: Solve for x
    x = 37,916,247.83/5,171.49
  6. Step 6: Final answer
    x = 7,331.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.