Home / 3,126.03-4,313.87-1,728.75

Finding the Fourth Proportional to 3,126.03, 4,313.87 and 1,728.75

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Solution

The fourth proportional to 3,126.03, 4,313.87 and 1,728.75 is: 2,385.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.03 : 4,313.87 = 1,728.75 : x
  2. Step 2: Convert to fraction form
    3,126.03/4,313.87 = 1,728.75/x
  3. Step 3: Cross multiply
    3,126.03x = 4,313.87 × 1,728.75
  4. Step 4: Simplify right side
    3,126.03x = 7,457,594.12
  5. Step 5: Solve for x
    x = 7,457,594.12/3,126.03
  6. Step 6: Final answer
    x = 2,385.64

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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.