Home / 2,149.16-3,218.25-1,416.51

Finding the Fourth Proportional to 2,149.16, 3,218.25 and 1,416.51

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Solution

The fourth proportional to 2,149.16, 3,218.25 and 1,416.51 is: 2,121.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,149.16 : 3,218.25 = 1,416.51 : x
  2. Step 2: Convert to fraction form
    2,149.16/3,218.25 = 1,416.51/x
  3. Step 3: Cross multiply
    2,149.16x = 3,218.25 × 1,416.51
  4. Step 4: Simplify right side
    2,149.16x = 4,558,688.62
  5. Step 5: Solve for x
    x = 4,558,688.62/2,149.16
  6. Step 6: Final answer
    x = 2,121.15

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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.