Home / 3,815.04-5,717.44-3,139.20

Finding the Fourth Proportional to 3,815.04, 5,717.44 and 3,139.20

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Solution

The fourth proportional to 3,815.04, 5,717.44 and 3,139.20 is: 4,704.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.04 : 5,717.44 = 3,139.20 : x
  2. Step 2: Convert to fraction form
    3,815.04/5,717.44 = 3,139.20/x
  3. Step 3: Cross multiply
    3,815.04x = 5,717.44 × 3,139.20
  4. Step 4: Simplify right side
    3,815.04x = 17,948,187.65
  5. Step 5: Solve for x
    x = 17,948,187.65/3,815.04
  6. Step 6: Final answer
    x = 4,704.59

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1.5x scale

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.