Home / 5,181.40-7,150.10-2,823.48

Finding the Fourth Proportional to 5,181.40, 7,150.10 and 2,823.48

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Solution

The fourth proportional to 5,181.40, 7,150.10 and 2,823.48 is: 3,896.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,181.40 : 7,150.10 = 2,823.48 : x
  2. Step 2: Convert to fraction form
    5,181.40/7,150.10 = 2,823.48/x
  3. Step 3: Cross multiply
    5,181.40x = 7,150.10 × 2,823.48
  4. Step 4: Simplify right side
    5,181.40x = 20,188,164.35
  5. Step 5: Solve for x
    x = 20,188,164.35/5,181.40
  6. Step 6: Final answer
    x = 3,896.28

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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.