Home / 7,475.72-11,212.62-2,280.20

Finding the Fourth Proportional to 7,475.72, 11,212.62 and 2,280.20

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Solution

The fourth proportional to 7,475.72, 11,212.62 and 2,280.20 is: 3,420.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,475.72 : 11,212.62 = 2,280.20 : x
  2. Step 2: Convert to fraction form
    7,475.72/11,212.62 = 2,280.20/x
  3. Step 3: Cross multiply
    7,475.72x = 11,212.62 × 2,280.20
  4. Step 4: Simplify right side
    7,475.72x = 25,567,016.12
  5. Step 5: Solve for x
    x = 25,567,016.12/7,475.72
  6. Step 6: Final answer
    x = 3,420.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.