Home / 2,456.68-3,389.44-1,408.56

Finding the Fourth Proportional to 2,456.68, 3,389.44 and 1,408.56

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Solution

The fourth proportional to 2,456.68, 3,389.44 and 1,408.56 is: 1,943.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.68 : 3,389.44 = 1,408.56 : x
  2. Step 2: Convert to fraction form
    2,456.68/3,389.44 = 1,408.56/x
  3. Step 3: Cross multiply
    2,456.68x = 3,389.44 × 1,408.56
  4. Step 4: Simplify right side
    2,456.68x = 4,774,229.61
  5. Step 5: Solve for x
    x = 4,774,229.61/2,456.68
  6. Step 6: Final answer
    x = 1,943.37

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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.