Home / 2,451.79-3,383.04-1,389.43

Finding the Fourth Proportional to 2,451.79, 3,383.04 and 1,389.43

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Solution

The fourth proportional to 2,451.79, 3,383.04 and 1,389.43 is: 1,917.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.79 : 3,383.04 = 1,389.43 : x
  2. Step 2: Convert to fraction form
    2,451.79/3,383.04 = 1,389.43/x
  3. Step 3: Cross multiply
    2,451.79x = 3,383.04 × 1,389.43
  4. Step 4: Simplify right side
    2,451.79x = 4,700,497.27
  5. Step 5: Solve for x
    x = 4,700,497.27/2,451.79
  6. Step 6: Final answer
    x = 1,917.17

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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.