Home / 2,451.96-3,383.16-1,389.63

Finding the Fourth Proportional to 2,451.96, 3,383.16 and 1,389.63

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Solution

The fourth proportional to 2,451.96, 3,383.16 and 1,389.63 is: 1,917.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.96 : 3,383.16 = 1,389.63 : x
  2. Step 2: Convert to fraction form
    2,451.96/3,383.16 = 1,389.63/x
  3. Step 3: Cross multiply
    2,451.96x = 3,383.16 × 1,389.63
  4. Step 4: Simplify right side
    2,451.96x = 4,701,335.42
  5. Step 5: Solve for x
    x = 4,701,335.42/2,451.96
  6. Step 6: Final answer
    x = 1,917.38

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1.5x scale

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.