Home / 2,486.45-3,431.60-1,491.69

Finding the Fourth Proportional to 2,486.45, 3,431.60 and 1,491.69

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Solution

The fourth proportional to 2,486.45, 3,431.60 and 1,491.69 is: 2,058.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,486.45 : 3,431.60 = 1,491.69 : x
  2. Step 2: Convert to fraction form
    2,486.45/3,431.60 = 1,491.69/x
  3. Step 3: Cross multiply
    2,486.45x = 3,431.60 × 1,491.69
  4. Step 4: Simplify right side
    2,486.45x = 5,118,883.40
  5. Step 5: Solve for x
    x = 5,118,883.40/2,486.45
  6. Step 6: Final answer
    x = 2,058.71

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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.