Home / 3,124.29-4,687.11-933.20

Finding the Fourth Proportional to 3,124.29, 4,687.11 and 933.20

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Solution

The fourth proportional to 3,124.29, 4,687.11 and 933.20 is: 1,399.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.29 : 4,687.11 = 933.20 : x
  2. Step 2: Convert to fraction form
    3,124.29/4,687.11 = 933.20/x
  3. Step 3: Cross multiply
    3,124.29x = 4,687.11 × 933.20
  4. Step 4: Simplify right side
    3,124.29x = 4,373,987.62
  5. Step 5: Solve for x
    x = 4,373,987.62/3,124.29
  6. Step 6: Final answer
    x = 1,399.99

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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.