Home / 3,110.99-4,291.94-2,166.53

Finding the Fourth Proportional to 3,110.99, 4,291.94 and 2,166.53

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Solution

The fourth proportional to 3,110.99, 4,291.94 and 2,166.53 is: 2,988.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,110.99 : 4,291.94 = 2,166.53 : x
  2. Step 2: Convert to fraction form
    3,110.99/4,291.94 = 2,166.53/x
  3. Step 3: Cross multiply
    3,110.99x = 4,291.94 × 2,166.53
  4. Step 4: Simplify right side
    3,110.99x = 9,298,605.94
  5. Step 5: Solve for x
    x = 9,298,605.94/3,110.99
  6. Step 6: Final answer
    x = 2,988.95

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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.