Home / 2,317.88-3,478.17-858.04

Finding the Fourth Proportional to 2,317.88, 3,478.17 and 858.04

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Solution

The fourth proportional to 2,317.88, 3,478.17 and 858.04 is: 1,287.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,317.88 : 3,478.17 = 858.04 : x
  2. Step 2: Convert to fraction form
    2,317.88/3,478.17 = 858.04/x
  3. Step 3: Cross multiply
    2,317.88x = 3,478.17 × 858.04
  4. Step 4: Simplify right side
    2,317.88x = 2,984,408.99
  5. Step 5: Solve for x
    x = 2,984,408.99/2,317.88
  6. Step 6: Final answer
    x = 1,287.56

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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.