Home / 2,459.41-3,390.90-1,672.09

Finding the Fourth Proportional to 2,459.41, 3,390.90 and 1,672.09

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Solution

The fourth proportional to 2,459.41, 3,390.90 and 1,672.09 is: 2,305.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,459.41 : 3,390.90 = 1,672.09 : x
  2. Step 2: Convert to fraction form
    2,459.41/3,390.90 = 1,672.09/x
  3. Step 3: Cross multiply
    2,459.41x = 3,390.90 × 1,672.09
  4. Step 4: Simplify right side
    2,459.41x = 5,669,889.98
  5. Step 5: Solve for x
    x = 5,669,889.98/2,459.41
  6. Step 6: Final answer
    x = 2,305.39

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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.