Home / 2,126.10-3,183.75-1,778.58

Finding the Fourth Proportional to 2,126.10, 3,183.75 and 1,778.58

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Solution

The fourth proportional to 2,126.10, 3,183.75 and 1,778.58 is: 2,663.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,126.10 : 3,183.75 = 1,778.58 : x
  2. Step 2: Convert to fraction form
    2,126.10/3,183.75 = 1,778.58/x
  3. Step 3: Cross multiply
    2,126.10x = 3,183.75 × 1,778.58
  4. Step 4: Simplify right side
    2,126.10x = 5,662,554.08
  5. Step 5: Solve for x
    x = 5,662,554.08/2,126.10
  6. Step 6: Final answer
    x = 2,663.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.