Home / 3,403.34-5,106.97-1,428.78

Finding the Fourth Proportional to 3,403.34, 5,106.97 and 1,428.78

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Solution

The fourth proportional to 3,403.34, 5,106.97 and 1,428.78 is: 2,144.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,403.34 : 5,106.97 = 1,428.78 : x
  2. Step 2: Convert to fraction form
    3,403.34/5,106.97 = 1,428.78/x
  3. Step 3: Cross multiply
    3,403.34x = 5,106.97 × 1,428.78
  4. Step 4: Simplify right side
    3,403.34x = 7,296,757.53
  5. Step 5: Solve for x
    x = 7,296,757.53/3,403.34
  6. Step 6: Final answer
    x = 2,144.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.