Home / 2,789.12-4,184.14-1,145.23

Finding the Fourth Proportional to 2,789.12, 4,184.14 and 1,145.23

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Solution

The fourth proportional to 2,789.12, 4,184.14 and 1,145.23 is: 1,718.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.12 : 4,184.14 = 1,145.23 : x
  2. Step 2: Convert to fraction form
    2,789.12/4,184.14 = 1,145.23/x
  3. Step 3: Cross multiply
    2,789.12x = 4,184.14 × 1,145.23
  4. Step 4: Simplify right side
    2,789.12x = 4,791,802.65
  5. Step 5: Solve for x
    x = 4,791,802.65/2,789.12
  6. Step 6: Final answer
    x = 1,718.03

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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.