Home / 3,149.13-4,722.43-957.45

Finding the Fourth Proportional to 3,149.13, 4,722.43 and 957.45

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Solution

The fourth proportional to 3,149.13, 4,722.43 and 957.45 is: 1,435.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149.13 : 4,722.43 = 957.45 : x
  2. Step 2: Convert to fraction form
    3,149.13/4,722.43 = 957.45/x
  3. Step 3: Cross multiply
    3,149.13x = 4,722.43 × 957.45
  4. Step 4: Simplify right side
    3,149.13x = 4,521,490.60
  5. Step 5: Solve for x
    x = 4,521,490.60/3,149.13
  6. Step 6: Final answer
    x = 1,435.79

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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.