Home / 3,507.13-5,260.09-1,315.41

Finding the Fourth Proportional to 3,507.13, 5,260.09 and 1,315.41

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Solution

The fourth proportional to 3,507.13, 5,260.09 and 1,315.41 is: 1,972.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.13 : 5,260.09 = 1,315.41 : x
  2. Step 2: Convert to fraction form
    3,507.13/5,260.09 = 1,315.41/x
  3. Step 3: Cross multiply
    3,507.13x = 5,260.09 × 1,315.41
  4. Step 4: Simplify right side
    3,507.13x = 6,919,174.99
  5. Step 5: Solve for x
    x = 6,919,174.99/3,507.13
  6. Step 6: Final answer
    x = 1,972.89

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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.