Home / 3,309.42-4,567.14-1,912.08

Finding the Fourth Proportional to 3,309.42, 4,567.14 and 1,912.08

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Solution

The fourth proportional to 3,309.42, 4,567.14 and 1,912.08 is: 2,638.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,309.42 : 4,567.14 = 1,912.08 : x
  2. Step 2: Convert to fraction form
    3,309.42/4,567.14 = 1,912.08/x
  3. Step 3: Cross multiply
    3,309.42x = 4,567.14 × 1,912.08
  4. Step 4: Simplify right side
    3,309.42x = 8,732,737.05
  5. Step 5: Solve for x
    x = 8,732,737.05/3,309.42
  6. Step 6: Final answer
    x = 2,638.75

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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.