Home / 7,431.55-11,147.39-3,214.01

Finding the Fourth Proportional to 7,431.55, 11,147.39 and 3,214.01

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Solution

The fourth proportional to 7,431.55, 11,147.39 and 3,214.01 is: 4,821.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,431.55 : 11,147.39 = 3,214.01 : x
  2. Step 2: Convert to fraction form
    7,431.55/11,147.39 = 3,214.01/x
  3. Step 3: Cross multiply
    7,431.55x = 11,147.39 × 3,214.01
  4. Step 4: Simplify right side
    7,431.55x = 35,827,846.78
  5. Step 5: Solve for x
    x = 35,827,846.78/7,431.55
  6. Step 6: Final answer
    x = 4,821.05

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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.