Home / 3,311.55-4,559.49-2,813.40

Finding the Fourth Proportional to 3,311.55, 4,559.49 and 2,813.40

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Solution

The fourth proportional to 3,311.55, 4,559.49 and 2,813.40 is: 3,873.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,311.55 : 4,559.49 = 2,813.40 : x
  2. Step 2: Convert to fraction form
    3,311.55/4,559.49 = 2,813.40/x
  3. Step 3: Cross multiply
    3,311.55x = 4,559.49 × 2,813.40
  4. Step 4: Simplify right side
    3,311.55x = 12,827,669.17
  5. Step 5: Solve for x
    x = 12,827,669.17/3,311.55
  6. Step 6: Final answer
    x = 3,873.61

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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.