Home / 2,811.68-4,214.88-1,167.17

Finding the Fourth Proportional to 2,811.68, 4,214.88 and 1,167.17

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Solution

The fourth proportional to 2,811.68, 4,214.88 and 1,167.17 is: 1,749.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.68 : 4,214.88 = 1,167.17 : x
  2. Step 2: Convert to fraction form
    2,811.68/4,214.88 = 1,167.17/x
  3. Step 3: Cross multiply
    2,811.68x = 4,214.88 × 1,167.17
  4. Step 4: Simplify right side
    2,811.68x = 4,919,492.03
  5. Step 5: Solve for x
    x = 4,919,492.03/2,811.68
  6. Step 6: Final answer
    x = 1,749.67

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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.