Home / 3,945.28-5,435.04-2,701.12

Finding the Fourth Proportional to 3,945.28, 5,435.04 and 2,701.12

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Solution

The fourth proportional to 3,945.28, 5,435.04 and 2,701.12 is: 3,721.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,945.28 : 5,435.04 = 2,701.12 : x
  2. Step 2: Convert to fraction form
    3,945.28/5,435.04 = 2,701.12/x
  3. Step 3: Cross multiply
    3,945.28x = 5,435.04 × 2,701.12
  4. Step 4: Simplify right side
    3,945.28x = 14,680,695.24
  5. Step 5: Solve for x
    x = 14,680,695.24/3,945.28
  6. Step 6: Final answer
    x = 3,721.08

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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.