Home / 1,713.67-2,568.13-890.30

Finding the Fourth Proportional to 1,713.67, 2,568.13 and 890.30

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Solution

The fourth proportional to 1,713.67, 2,568.13 and 890.30 is: 1,334.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,713.67 : 2,568.13 = 890.30 : x
  2. Step 2: Convert to fraction form
    1,713.67/2,568.13 = 890.30/x
  3. Step 3: Cross multiply
    1,713.67x = 2,568.13 × 890.30
  4. Step 4: Simplify right side
    1,713.67x = 2,286,406.14
  5. Step 5: Solve for x
    x = 2,286,406.14/1,713.67
  6. Step 6: Final answer
    x = 1,334.22

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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.