Home / 2,834.71-3,911.98-1,715.85

Finding the Fourth Proportional to 2,834.71, 3,911.98 and 1,715.85

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Solution

The fourth proportional to 2,834.71, 3,911.98 and 1,715.85 is: 2,367.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,834.71 : 3,911.98 = 1,715.85 : x
  2. Step 2: Convert to fraction form
    2,834.71/3,911.98 = 1,715.85/x
  3. Step 3: Cross multiply
    2,834.71x = 3,911.98 × 1,715.85
  4. Step 4: Simplify right side
    2,834.71x = 6,712,370.88
  5. Step 5: Solve for x
    x = 6,712,370.88/2,834.71
  6. Step 6: Final answer
    x = 2,367.92

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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.