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Finding the Fourth Proportional to 2,169.93, 3,258.92 and 1,130.65

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Solution

The fourth proportional to 2,169.93, 3,258.92 and 1,130.65 is: 1,698.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,169.93 : 3,258.92 = 1,130.65 : x
  2. Step 2: Convert to fraction form
    2,169.93/3,258.92 = 1,130.65/x
  3. Step 3: Cross multiply
    2,169.93x = 3,258.92 × 1,130.65
  4. Step 4: Simplify right side
    2,169.93x = 3,684,697.90
  5. Step 5: Solve for x
    x = 3,684,697.90/2,169.93
  6. Step 6: Final answer
    x = 1,698.07

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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.