Home / 2,456.32-3,389.84-1,408.36

Finding the Fourth Proportional to 2,456.32, 3,389.84 and 1,408.36

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Solution

The fourth proportional to 2,456.32, 3,389.84 and 1,408.36 is: 1,943.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,456.32 : 3,389.84 = 1,408.36 : x
  2. Step 2: Convert to fraction form
    2,456.32/3,389.84 = 1,408.36/x
  3. Step 3: Cross multiply
    2,456.32x = 3,389.84 × 1,408.36
  4. Step 4: Simplify right side
    2,456.32x = 4,774,115.06
  5. Step 5: Solve for x
    x = 4,774,115.06/2,456.32
  6. Step 6: Final answer
    x = 1,943.60

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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.