Home / 2,456.96-3,390.40-1,408.80

Finding the Fourth Proportional to 2,456.96, 3,390.40 and 1,408.80

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Solution

The fourth proportional to 2,456.96, 3,390.40 and 1,408.80 is: 1,944.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.96 : 3,390.40 = 1,408.80 : x
  2. Step 2: Convert to fraction form
    2,456.96/3,390.40 = 1,408.80/x
  3. Step 3: Cross multiply
    2,456.96x = 3,390.40 × 1,408.80
  4. Step 4: Simplify right side
    2,456.96x = 4,776,395.52
  5. Step 5: Solve for x
    x = 4,776,395.52/2,456.96
  6. Step 6: Final answer
    x = 1,944.03

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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.