Home / 3,969.84-5,476.08-2,572.56

Finding the Fourth Proportional to 3,969.84, 5,476.08 and 2,572.56

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Solution

The fourth proportional to 3,969.84, 5,476.08 and 2,572.56 is: 3,548.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,969.84 : 5,476.08 = 2,572.56 : x
  2. Step 2: Convert to fraction form
    3,969.84/5,476.08 = 2,572.56/x
  3. Step 3: Cross multiply
    3,969.84x = 5,476.08 × 2,572.56
  4. Step 4: Simplify right side
    3,969.84x = 14,087,544.36
  5. Step 5: Solve for x
    x = 14,087,544.36/3,969.84
  6. Step 6: Final answer
    x = 3,548.64

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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.