Home / 3,126.86-4,313.73-1,800.28

Finding the Fourth Proportional to 3,126.86, 4,313.73 and 1,800.28

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Solution

The fourth proportional to 3,126.86, 4,313.73 and 1,800.28 is: 2,483.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.86 : 4,313.73 = 1,800.28 : x
  2. Step 2: Convert to fraction form
    3,126.86/4,313.73 = 1,800.28/x
  3. Step 3: Cross multiply
    3,126.86x = 4,313.73 × 1,800.28
  4. Step 4: Simplify right side
    3,126.86x = 7,765,944.09
  5. Step 5: Solve for x
    x = 7,765,944.09/3,126.86
  6. Step 6: Final answer
    x = 2,483.62

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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.