Home / 2,451.65-3,383.37-1,389.47

Finding the Fourth Proportional to 2,451.65, 3,383.37 and 1,389.47

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Solution

The fourth proportional to 2,451.65, 3,383.37 and 1,389.47 is: 1,917.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.65 : 3,383.37 = 1,389.47 : x
  2. Step 2: Convert to fraction form
    2,451.65/3,383.37 = 1,389.47/x
  3. Step 3: Cross multiply
    2,451.65x = 3,383.37 × 1,389.47
  4. Step 4: Simplify right side
    2,451.65x = 4,701,074.20
  5. Step 5: Solve for x
    x = 4,701,074.20/2,451.65
  6. Step 6: Final answer
    x = 1,917.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.