Home / 3,945.87-5,440.17-3,235.08

Finding the Fourth Proportional to 3,945.87, 5,440.17 and 3,235.08

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Solution

The fourth proportional to 3,945.87, 5,440.17 and 3,235.08 is: 4,460.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.87 : 5,440.17 = 3,235.08 : x
  2. Step 2: Convert to fraction form
    3,945.87/5,440.17 = 3,235.08/x
  3. Step 3: Cross multiply
    3,945.87x = 5,440.17 × 3,235.08
  4. Step 4: Simplify right side
    3,945.87x = 17,599,385.16
  5. Step 5: Solve for x
    x = 17,599,385.16/3,945.87
  6. Step 6: Final answer
    x = 4,460.20

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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.