Home / 2,456.58-3,390.53-1,408.64

Finding the Fourth Proportional to 2,456.58, 3,390.53 and 1,408.64

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Solution

The fourth proportional to 2,456.58, 3,390.53 and 1,408.64 is: 1,944.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.58 : 3,390.53 = 1,408.64 : x
  2. Step 2: Convert to fraction form
    2,456.58/3,390.53 = 1,408.64/x
  3. Step 3: Cross multiply
    2,456.58x = 3,390.53 × 1,408.64
  4. Step 4: Simplify right side
    2,456.58x = 4,776,043.14
  5. Step 5: Solve for x
    x = 4,776,043.14/2,456.58
  6. Step 6: Final answer
    x = 1,944.19

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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.