Home / 5,109.21-7,050.24-2,871.18

Finding the Fourth Proportional to 5,109.21, 7,050.24 and 2,871.18

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Solution

The fourth proportional to 5,109.21, 7,050.24 and 2,871.18 is: 3,961.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,109.21 : 7,050.24 = 2,871.18 : x
  2. Step 2: Convert to fraction form
    5,109.21/7,050.24 = 2,871.18/x
  3. Step 3: Cross multiply
    5,109.21x = 7,050.24 × 2,871.18
  4. Step 4: Simplify right side
    5,109.21x = 20,242,508.08
  5. Step 5: Solve for x
    x = 20,242,508.08/5,109.21
  6. Step 6: Final answer
    x = 3,961.96

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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.