Home / 7,161.70-10,742.55-2,231.74

Finding the Fourth Proportional to 7,161.70, 10,742.55 and 2,231.74

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Solution

The fourth proportional to 7,161.70, 10,742.55 and 2,231.74 is: 3,347.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.70 : 10,742.55 = 2,231.74 : x
  2. Step 2: Convert to fraction form
    7,161.70/10,742.55 = 2,231.74/x
  3. Step 3: Cross multiply
    7,161.70x = 10,742.55 × 2,231.74
  4. Step 4: Simplify right side
    7,161.70x = 23,974,529.45
  5. Step 5: Solve for x
    x = 23,974,529.45/7,161.70
  6. Step 6: Final answer
    x = 3,347.60

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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.