Home / 2,811.17-4,217.99-1,511.12

Finding the Fourth Proportional to 2,811.17, 4,217.99 and 1,511.12

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Solution

The fourth proportional to 2,811.17, 4,217.99 and 1,511.12 is: 2,267.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,811.17 : 4,217.99 = 1,511.12 : x
  2. Step 2: Convert to fraction form
    2,811.17/4,217.99 = 1,511.12/x
  3. Step 3: Cross multiply
    2,811.17x = 4,217.99 × 1,511.12
  4. Step 4: Simplify right side
    2,811.17x = 6,373,892.04
  5. Step 5: Solve for x
    x = 6,373,892.04/2,811.17
  6. Step 6: Final answer
    x = 2,267.34

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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.