Home / 5,235.21-7,224.32-2,876.90

Finding the Fourth Proportional to 5,235.21, 7,224.32 and 2,876.90

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Solution

The fourth proportional to 5,235.21, 7,224.32 and 2,876.90 is: 3,969.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,235.21 : 7,224.32 = 2,876.90 : x
  2. Step 2: Convert to fraction form
    5,235.21/7,224.32 = 2,876.90/x
  3. Step 3: Cross multiply
    5,235.21x = 7,224.32 × 2,876.90
  4. Step 4: Simplify right side
    5,235.21x = 20,783,595.70
  5. Step 5: Solve for x
    x = 20,783,595.70/5,235.21
  6. Step 6: Final answer
    x = 3,969.96

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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.