Home / 3,438.10-4,744.69-1,945.99

Finding the Fourth Proportional to 3,438.10, 4,744.69 and 1,945.99

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Solution

The fourth proportional to 3,438.10, 4,744.69 and 1,945.99 is: 2,685.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.10 : 4,744.69 = 1,945.99 : x
  2. Step 2: Convert to fraction form
    3,438.10/4,744.69 = 1,945.99/x
  3. Step 3: Cross multiply
    3,438.10x = 4,744.69 × 1,945.99
  4. Step 4: Simplify right side
    3,438.10x = 9,233,119.29
  5. Step 5: Solve for x
    x = 9,233,119.29/3,438.10
  6. Step 6: Final answer
    x = 2,685.53

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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.