Home / 2,834.20-3,911.28-1,715.34

Finding the Fourth Proportional to 2,834.20, 3,911.28 and 1,715.34

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Solution

The fourth proportional to 2,834.20, 3,911.28 and 1,715.34 is: 2,367.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.20 : 3,911.28 = 1,715.34 : x
  2. Step 2: Convert to fraction form
    2,834.20/3,911.28 = 1,715.34/x
  3. Step 3: Cross multiply
    2,834.20x = 3,911.28 × 1,715.34
  4. Step 4: Simplify right side
    2,834.20x = 6,709,175.04
  5. Step 5: Solve for x
    x = 6,709,175.04/2,834.20
  6. Step 6: Final answer
    x = 2,367.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.