Home / 3,126.57-4,314.84-1,800.33

Finding the Fourth Proportional to 3,126.57, 4,314.84 and 1,800.33

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Solution

The fourth proportional to 3,126.57, 4,314.84 and 1,800.33 is: 2,484.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.57 : 4,314.84 = 1,800.33 : x
  2. Step 2: Convert to fraction form
    3,126.57/4,314.84 = 1,800.33/x
  3. Step 3: Cross multiply
    3,126.57x = 4,314.84 × 1,800.33
  4. Step 4: Simplify right side
    3,126.57x = 7,768,135.90
  5. Step 5: Solve for x
    x = 7,768,135.90/3,126.57
  6. Step 6: Final answer
    x = 2,484.56

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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.