Home / 7,122.39-10,677.08-3,171.57

Finding the Fourth Proportional to 7,122.39, 10,677.08 and 3,171.57

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Solution

The fourth proportional to 7,122.39, 10,677.08 and 3,171.57 is: 4,754.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,122.39 : 10,677.08 = 3,171.57 : x
  2. Step 2: Convert to fraction form
    7,122.39/10,677.08 = 3,171.57/x
  3. Step 3: Cross multiply
    7,122.39x = 10,677.08 × 3,171.57
  4. Step 4: Simplify right side
    7,122.39x = 33,863,090.76
  5. Step 5: Solve for x
    x = 33,863,090.76/7,122.39
  6. Step 6: Final answer
    x = 4,754.46

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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.