Home / 2,613.69-3,605.99-2,318.85

Finding the Fourth Proportional to 2,613.69, 3,605.99 and 2,318.85

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Solution

The fourth proportional to 2,613.69, 3,605.99 and 2,318.85 is: 3,199.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,613.69 : 3,605.99 = 2,318.85 : x
  2. Step 2: Convert to fraction form
    2,613.69/3,605.99 = 2,318.85/x
  3. Step 3: Cross multiply
    2,613.69x = 3,605.99 × 2,318.85
  4. Step 4: Simplify right side
    2,613.69x = 8,361,738.32
  5. Step 5: Solve for x
    x = 8,361,738.32/2,613.69
  6. Step 6: Final answer
    x = 3,199.21

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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.