Home / 2,451.49-3,383.02-1,389.24

Finding the Fourth Proportional to 2,451.49, 3,383.02 and 1,389.24

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Solution

The fourth proportional to 2,451.49, 3,383.02 and 1,389.24 is: 1,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,451.49 : 3,383.02 = 1,389.24 : x
  2. Step 2: Convert to fraction form
    2,451.49/3,383.02 = 1,389.24/x
  3. Step 3: Cross multiply
    2,451.49x = 3,383.02 × 1,389.24
  4. Step 4: Simplify right side
    2,451.49x = 4,699,815.87
  5. Step 5: Solve for x
    x = 4,699,815.87/2,451.49
  6. Step 6: Final answer
    x = 1,917.13

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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.