Home / 3,507.14-5,257.05-1,428.58

Finding the Fourth Proportional to 3,507.14, 5,257.05 and 1,428.58

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Solution

The fourth proportional to 3,507.14, 5,257.05 and 1,428.58 is: 2,141.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.14 : 5,257.05 = 1,428.58 : x
  2. Step 2: Convert to fraction form
    3,507.14/5,257.05 = 1,428.58/x
  3. Step 3: Cross multiply
    3,507.14x = 5,257.05 × 1,428.58
  4. Step 4: Simplify right side
    3,507.14x = 7,510,090.20
  5. Step 5: Solve for x
    x = 7,510,090.20/3,507.14
  6. Step 6: Final answer
    x = 2,141.37

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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.