Home / 2,260.12-3,389.63-872.57

Finding the Fourth Proportional to 2,260.12, 3,389.63 and 872.57

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Solution

The fourth proportional to 2,260.12, 3,389.63 and 872.57 is: 1,308.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,260.12 : 3,389.63 = 872.57 : x
  2. Step 2: Convert to fraction form
    2,260.12/3,389.63 = 872.57/x
  3. Step 3: Cross multiply
    2,260.12x = 3,389.63 × 872.57
  4. Step 4: Simplify right side
    2,260.12x = 2,957,668.14
  5. Step 5: Solve for x
    x = 2,957,668.14/2,260.12
  6. Step 6: Final answer
    x = 1,308.64

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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.